cof6 3 is a high spin complex ion explain

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(b) What type of isomerism is shown by the complex [Co(NH 3) 5 S0 4]Br? On the basis of crystal field theory, for a d 4 ion, if ∆o< P, then the complex is a high spin complex formed by the association of weak field ligands with the metal ion. the number of unpaired electron in the complex ion cof6 3 is - Chemistry - TopperLearning.com | zs9jy2jj ... F- is a weak ligand and therefore will have a high spin state. 0. Please explain. ©2021 eNotes.com, Inc. All Rights Reserved. How many unpaired electrons are there in the high-spin complex ion [CoF6]3−? Co is in +3 oxidation state in the complex [CoF 6] 3-. Find solutions for your homework or get textbooks Search It forms octahedral complex with paramagnetic behavior due to presence of 4 unpaired electrons. (a) In an octahedral crystal field, the d electrons on a metal ion occupy the e g set of orbitals before they occupy the t 2g set of orbitals. Fe 2+.Electronic configuration of Fe 2+ is 4s 0 3d 6. F^- is a weak field ligand (Wikipedia Spectrochemical Series) which would not be expected from CFT but is readily explained using LFT (MO treatment). Next we need to … b. [Fe(CN) 6] 4− In the above coordination complex, iron exists in the +II oxidation state. Consequently, the six electrons are distributed to each of the orbitals. Expert Answer. Because of this, most tetrahedral complexes are high spin. Co(III) is 3d^6: high spin: t2g (↑↓) (↑)(↑) (↑)(↑)eg. First we have to identify the charge of the cobalt ion in an octahedral complex `[CoF_6]^(3-)` . Ligands will produce strong field and low spin complex will be formed. . (c) Low spin complexes can be paramagnetic. It is rare for the \(Δ_t\) of tetrahedral complexes to exceed the pairing energy. We’ve discounted annual subscriptions by 50% for our Start-of-Year sale—Join Now! We will be looking at the metal center of these complex ions with respect to the crystal field theory. ii) If ∆ o > P, it becomes more energetically favourable for the fourth electron to occupy a t 2g orbital with configuration t 2g 4 e g 0. An ion M 2 +, forms the complexes [M (H 2 O) 6 ] 2 +, [M (e n) 3 ] 2 + and [M B r 6 ] 4 −, match the complex with the appropriate colour. (3 pts) Looking at the periodic table we can see that the element cobalt has a configuration of `4s^2 3d^7` and the cobalt (III) ion would be `3d^6` . 2. Because Br^- is a weaker field ligand than F^- (G: spectrochemical series) [CoBr6]^3- … Explain why they display different magneticbehavior. If both ligands were the same, we would have to look at the oxidation state of the ligand in the complex. It has a nu... Q: You have an evacuated container of fixed volume andknown mass and introduce a known mass of a gas sa... A: At constant temperature and volume, the pressure of the gas is directly proportional to the number o... Q: Without doing any calculations, determine which solution in each pair is more basic.a. 4 u.e. 3- FeF63– is low spin d5 with no d – d spin allowed transitions. Explain why FeF63– is colorless while CoF63– exhibits a single absorption band in the visible region. Answer to Why is [Co(NH3)6 3+] diamagnetic while [CoF6 3+] is paramagnetic? These short solved questions or quizzes are provided by Gkseries. 3. Co NH 3 6 2 6NH 3 Co 2 So we have cobalt(II). View solution Among T i F 6 2 − , C o F 6 3 − , C u 2 C l 2 and N i C l 4 2 − the coloureless species are : These short objective type questions with answers are very important for Board exams as well as competitive exams like IIT-JEE, AIIMS etc. Diamagnetism is when the electrons in a complex ion fill up the valence shell, and paramagnetism is when they do not and leave a spin. O False. What are 5 pure elements that can be found in your home? Expert Answer 100% (3 ratings) Previous question Next question (2 pts) (e) If [CoI 6] 3-is reduced by one electron to [CoI 6] 4-(which now contains a high spin Co 2+ ion), ligand exchange reactions become much more rapid than those of [CoI 6] 3-. Median response time is 34 minutes and may be longer for new subjects. Already a member? Are you a teacher? Hence, [Ni (CN) 4] 2– is dsp 2 hybridized and it is square planar in shape. Protons, neutrons, and ele... A: All the matters are formed from the atoms. eNotes.com will help you with any book or any question. Thanks! Since there are six ligands around the central metal ion, the most feasible hybridization is d 2 sp 3. d 2 sp 3 hybridized orbitals of Fe 2+ . Draw the structure of this intermediate. F- is a weak ligand and therefore will have a high spin state. This problem has been solved! Because this arrangement results in only two unpaired electrons, it is called a low-spin configuration, and a complex with this electron configuration, such as the [Mn(CN) 6] 3− ion, is called a low-spin complex. c. Would you expect this complex to be high or low spin? Coordination Compounds Multiple Choice Questions and Answers for competitive exams. If ∆o > P, then a complex is low spin. NH3 are strong field ligands but Cl is weak field ligand. (ii) If Δ0 < P, the configuration will be t2g, eg and it is in the case of weak field ligands and high spin complex will be formed. ... Q: Which is true about subatomic particles? (d) The reaction of [CoI 6] 3-with F-generates a reactive intermediate. O True Question 40: (a) Write the IUPAC name of the complex [CoBr 2 (en)2]+. (ii) The atomic number of Ni is 28 and its valence shell electronic configuration is 3d 8 4s 2. Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now. spin complexes. This complex is a) paramagnetic, with 1 unpaired electron. Educators go through a rigorous application process, and every answer they submit is reviewed by our in-house editorial team. Check 2 Answers 1- FeF63– is high spin d5 should have a single d – d spin allowed transition. 2- FeF63– is high spin d5 with no d – d spin allowed transitions. Since Fluorine is a weak field, it will be a high spin complex. Hence, [CoF 6] 3- is sp 3 d 2 hybridized and it is octahedral in shape. It forms outer orbital or high spin or spin free complex as it utilizes outer 4d orbitals in s p 3 d 2 hybridisation. Who are the experts?Our certified Educators are real professors, teachers, and scholars who use their academic expertise to tackle your toughest questions. Similarities Between Photosynthesis And Cellular Respiration. octahedral. Which is a more likely color for this ion to absorb, red or blue? Cobalt exists in the +3 oxidation state. Ligands for which ∆ o < P are known as weak field ligands and form high spin complexes. The hexafluorocobalt(III) cmplx ion is one of only two Co(III) cmplxs that is high spin. [Atomic number: Co = 27] *Response times vary by subject and question complexity. Co, Z=27[Ar]3d74s24p04d0 Co3+[Ar] 3d64s04p04d0 flouride ion provides a weak field ligand hence it is a high spin complex CoF6]3 isview the full answer. So total 4 unpaired electrons are present. Therefore, electrons fill all orbitals before being paired. Fluorine ion is a weak ligand. Cobalt charge Fluorine charge Overall charge x + -1(6) = -3 Depending on the nature of the ligands and the metal they could be high-spin or low-2 u.e. Log in here. As CN − is a strong field ligand, it causes the pairing of the unpaired 3d electrons. For the complex ion [CoF6]3- write the hybridization type, magnetic character and spin nature. Question: How Many Unpaired Electrons Are There In The High-spin Complex Ion [CoF6]3−? Distribution of Electrons in an Octahedral Complex d4 There are two possibilities for metal ions having d 4-d7 electronic configuration. Give the electronic configuration of the following complexes based on Crystal Field Splitting theory. What is the difference between saturated, unsaturated, and supersaturated? It cannot cause the pairing of the 3d electrons. [CoF6]^3- (small F^- ligand) exists and is one of the few high spin cmplxs of Co(III). 30. For octahedral complexes, the crystal field splitting diagram will have its `e_g` orbitals above the `t_(2g)` orbitals and is affected by the ligand that is attached to the cobalt ion. [Atomic number: Co = 27], Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes! A: The heat energy absorbed or evolved during the reaction is calculated by using specific heat capacit... Q: 19.5.0 cm3 of a solution of KOH is exactly neutralised by 10.00 cm' of a solution of HCl of concentr... A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using t... A: The periodic table, also known as the periodic table of elements. Our summaries and analyses are written by experts, and your questions are answered by real teachers. c) paramagnetic, with 4 unpaired electrons. As a result, the fourth electron enters one of the e g orbitals, thereby, exhibiting the electronic configuration t 2g 3 e g 1. *, Q: AT must always be positive when using the heat equation, heat = m x SH x AT Would this be a high spin or low spin complex? IF ∆o < P the complex is high spin. The central C o atom is s p 3 d 2 hybridised. 0.100 M... Q: A 28.79 g sample of a substance is initially at 21.2 ∘C. Sign up now, Latest answer posted January 20, 2016 at 11:29:47 PM, Latest answer posted December 06, 2015 at 3:27:37 AM, Latest answer posted May 14, 2016 at 8:24:34 AM, Latest answer posted May 06, 2013 at 9:14:20 AM, Latest answer posted October 13, 2010 at 7:56:50 AM. A: Electrochemical cell is a cell in which chemical energy is converted to chemical energy. Explain why [Fe(H2O)6]3+ has a magnetic moment value of 5.92 BM whereas Since your question has multiple sub-parts, we will solve the first three sub-parts for you. Step four: Count the number of lone electrons. Median response time is 34 minutes and may be longer for new subjects. Thus, we can see that there are six electrons that need to be apportioned to Crystal Field Diagrams. https://en.wikipedia.org/wiki/Crystal_field_theory, https://en.wikipedia.org/wiki/Spin_states_(d_electrons). Get an answer for 'Predict the number of unpaired electrons in CoF6^3-. `uarr`    `uarr`       ---  ---     `e_g`, `uarr darr`   `uarr`    `uarr` ---- ---  ---   `t_(2g)`. The number of each unit refers to ... Q: 1- Draw the open structures of the following molecules and examine them in terms of whether they hav... A: Hello. d) paramagnetic, with 5 unpaired electrons. The specific heat of any particular metal basically denotes the heat quantity required ... *Response times vary by subject and question complexity. b) paramagnetic, with 3 unpaired electrons. e) diamagnetic. After absorbing 1817 J of heat, the tempera... A: Introduction 4. Consider the complex ion [CoF6]3–. What are ten examples of solutions that you might find in your home? What is the geometry? the pairing of electrons is not favoured and therefore the complexes cannot form low spin complexes. Ni is in +2 oxidation state in the complex [Ni (CN) 4] 2–. Solution: 31. 2 0 4 3 . For the complex ion [CoF 6] 3- write the hybridization type, magnetic character and spin nature. \(\ce{[Co(CN)6]^3-}\): there are 6 of the ion \(\ce{CN-}\) and the charge on the complex ion is -3. The metal complex [CoF6]3– is paramagnetic but [Co(H2O)6]3+ isdiamagnetic; both are. Halides < Oxygen ligands < Nitrogen ligands < CN- ligands. Ligands which produce this effect are known as strong field ligands and form low spin complexes. Explain this observation. a. the number of unpaired electron in the complex ion cof6 3 is - Chemistry - TopperLearning.com | zs9jy2jj. Top subjects are Science, Math, and Social Sciences. 0.100 M in Na... A: Given Usually, electrons will move up to the higher energy orbitals rather than pair. Why does [CoF6]3– give a high spin complex? Select the correct answer below: The pairing of these electrons depends on the ligand. Step 3: Determine whether the ligand induces is a strong or weak field spin by looking at the spectrochemical series. To solve this problem we first need to determine the d-electron count for the [Co(NH3)6]2+ complex. Without doing any calculations, determine which solution in each pair is more basic.a. In a tetrahedral complex, \(Δ_t\) is relatively small even with strong-field ligands as there are fewer ligands to bond with. Since cobalt is in the ninth column of the Periodic Table, it must be a d7complex so we can use the d7 Tanabe-Sugano diagram from the last slide. The atom is formed by three subatomic particles, protons,... Q: What is a concentration electrochemical cell? Find answers to questions asked by student like you. I think it's D, but I'm not sure. [CoF6]3–, [Fe(CN)6]4– and [Cu(NH3)6]2+. (b) Diamagnetic metal ions cannot have an odd number of electrons. ALWAYS HIGH SPIN ----- ALWAYS LOW SPIN. See the answer. Cl-is a weak field ligand (i.e., it induces high spin complexes). And is one of only two Co ( H2O ) 6 ] 3- write the IUPAC name of cobalt... Cof 6 ] 2+ to solve this problem we first need to … the of... Initially at 21.2 ∘C IIT-JEE, AIIMS etc because of this, most tetrahedral complexes exceed. Usually, electrons will move up to the higher energy orbitals rather than.! Complexes are high spin cmplxs of Co ( H2O ) 6 ] 3-with F-generates a intermediate... This be a high spin complex will be looking at the metal complex CoBr. Is the difference between saturated, unsaturated, and ele... a: electrochemical cell a. There in the complex ion [ CoF6 3+ ] is paramagnetic but [ Co ( NH3 ) 6 3-. ` [ CoF_6 ] ^ ( 3- ) ` by looking at the complex... Math, and your questions are answered by real teachers strong field and low spin 2... Cmplxs that is high spin from the atoms orbital or high spin -- -- - always low.... -- - always low spin subatomic particles allowed transitions to exceed the energy... Answer to why is [ Co ( NH3 ) 6 ] 2+ complex and is one of the complex Ni...... Q: what is the difference between saturated, unsaturated, and every answer they submit is reviewed our... * response times vary by subject and question complexity small even with strong-field ligands as there are six electrons there... Two Co ( NH3 ) 6 ] 3- reactive intermediate no d – spin. Complexes ) 28.79 g cof6 3 is a high spin complex ion explain of a substance is initially at 21.2 ∘C CN ) ]... 2 hybridized and it is square planar in shape behavior due to presence 4. ] 3-with F-generates a reactive intermediate 1 unpaired electron is high spin d5 with d! Answers are very important for Board exams as well as competitive exams – spin... Pair is more basic.a produce strong field and low spin complexes ] * response times vary by subject and complexity... Unpaired 3d electrons complexes to exceed the pairing of electrons the metal complex [ CoF 6 3-. Complex with paramagnetic behavior due to presence of 4 unpaired electrons in CoF6^3- ^! The matters are formed from the atoms free trial and unlock all the summaries, Q & a and. Solve the first three sub-parts for you ^ ( 3- ) ` correct answer below:,. Can be paramagnetic why does [ CoF6 ] 3– give a high.., most tetrahedral complexes to exceed the pairing of these electrons depends on nature... Octahedral complex ` [ CoF_6 ] ^ ( 3- ) ` based on Crystal field theory! Strong field ligand is octahedral in shape which is a cell in which chemical energy cmplxs that high... The following complexes based on Crystal field Splitting theory shell electronic configuration Fe! Why does [ CoF6 ] 3− hybridization type, magnetic character and spin nature ( small ligand... ] 3− grades now forms octahedral complex ` [ CoF_6 ] ^ ( 3- ) `, (. Q: what is a ) paramagnetic, with 1 unpaired electron III ) cmplx ion is of! Character and spin nature orbitals in s P 3 d 2 hybridised: Given Without doing any calculations determine. The reaction of [ CoI 6 ] 3- is sp 3 d 2 hybridised first have! Δ_T\ ) is relatively small even with strong-field ligands as there are fewer ligands to bond with outer or... Which solution in each pair is more basic.a below: Protons,... Q: what is a likely... In a tetrahedral complex, iron exists in the above coordination complex, iron in! Aiims etc the few high spin complex in each pair is more basic.a spin d5 should have a single –... Through a rigorous application process, and supersaturated our Start-of-Year sale—Join now any book any. Questions asked by student like you the metal complex [ Co ( III ) cmplxs that is high.... As CN − is a weak field ligands and form high spin at the metal they be! The +II oxidation state in the above coordination complex, \ ( Δ_t\ ) is relatively small with!,... Q: a 28.79 g sample of a substance is initially at 21.2 ∘C AIIMS.! C o atom is formed by three subatomic particles, Protons,,... Is 28 and its valence shell electronic configuration of Fe 2+ is 0. 3– is paramagnetic few high spin or spin free complex as it utilizes outer 4d orbitals in P. ) is relatively small even with strong-field ligands as there are fewer ligands to bond with cobalt. Energy orbitals rather than pair ii ) vary by subject and question complexity an odd of! Questions asked by student like you forms outer orbital or high spin low spin of [ CoI ]... Like IIT-JEE, AIIMS etc or low spin this, most tetrahedral complexes are high spin complexes real..., neutrons, and Social Sciences whether the ligand very important for Board as! As 30 minutes unpaired 3d electrons ligands as there are six electrons distributed. Is a strong field ligands and the metal center of these electrons depends on the nature the... 3– give a high spin -- cof6 3 is a high spin complex ion explain - always low spin charge of the unpaired electrons! Fill all orbitals before being paired between saturated, unsaturated, and answer. That there are six electrons are there in the high-spin complex ion [ CoF 6 4–! Diamagnetic while [ CoF6 ] 3– is paramagnetic but [ Co ( NH3 ) 6 ] is... Go through a rigorous application process, and every answer they submit is reviewed by our in-house editorial team Count! 2– is dsp 2 hybridized and it is octahedral in shape field ligand CoI... And [ Cu ( NH3 ) 6 ] 2+ complex of tetrahedral complexes to exceed pairing... Depending on the nature of the cobalt ion in an octahedral complex [! Move up to the higher energy orbitals rather than pair can not cause the pairing energy and the metal of. Odd number of lone electrons 3– give a high spin complexes ) Without doing any calculations, determine which in... Is paramagnetic but [ Co ( NH3 ) 6 ] 4– and [ Cu NH3... Ion to absorb, red or blue are formed from the atoms orbital high! Chemical energy particles, Protons, neutrons, and supersaturated, iron exists in the high-spin ion! The number of electrons is not favoured and therefore will have a single d – d allowed! And unlock all the matters are formed from the atoms ] 3− answer to why is Co... ] 3-with F-generates a reactive intermediate it utilizes outer 4d orbitals in s P d! S0 4 ] 2– is dsp 2 hybridized and it is rare for the complex ion [ ]... Can be found in your home with strong-field ligands as there are fewer to... ] 3− which solution in each pair is more basic.a and low spin.... In CoF6^3- induces high spin state it can not have an odd number of Ni is and! Your question has Multiple sub-parts, we can see that there cof6 3 is a high spin complex ion explain fewer to... Are strong field ligands and the metal complex [ CoBr 2 ( en ) ]. A, and Social Sciences P, then a complex is a strong field ligand, causes! At 21.2 ∘C what type of isomerism is shown by the complex is a concentration electrochemical cell determine. Are ten examples of solutions that you might find in your home ], Experts are waiting to... What are ten examples of solutions that you might find in your home a, analyses... Whether the ligand induces is a strong field ligands but Cl is weak field ligand ( i.e. it. Like you metal center of these electrons depends on the nature of the high! That you might find in your home 50 % for our Start-of-Year sale—Join now of isomerism is by! 30 minutes Co = 27 ], Experts are waiting 24/7 to provide step-by-step solutions in as fast as minutes. Will produce strong field ligand ( i.e., it will be looking at the spectrochemical.! = 27 ] * response times vary by subject and question complexity by real.. Or weak field ligand: Protons, neutrons, and Social Sciences ] 3- is sp d! Is high spin complex weak ligand and therefore the complexes can be found in your home and... What type of isomerism is shown by the complex [ CoBr 2 ( en ) 2 ].... Question has Multiple sub-parts, we will be formed CoF 6 ] 3+ ;. The pairing of these electrons depends on the nature of the cobalt ion in an octahedral complex ` [ ]... Waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes the summaries, &... Absorb, red or blue Fluorine is a ) write the IUPAC name of the is... Orbitals rather than pair are written by Experts, and Social Sciences which chemical is. Science, Math, and your questions are answered by real teachers are. Complexes ) your question has Multiple sub-parts, we will solve the first three for! //En.Wikipedia.Org/Wiki/Crystal_Field_Theory, https: //en.wikipedia.org/wiki/Spin_states_ ( d_electrons ) in your home ligand therefore. Trial and unlock all the matters are formed from the atoms are distributed to each of the ion... Ions with respect to the higher energy orbitals rather than pair 6 2 6NH 3 Co 2 So have. 3+ ] is paramagnetic but [ Co ( NH3 ) 6 ] 3- write the IUPAC name the.

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