3. Write the formula and draw the structures for each of the following compounds; make use of brackets to indicate the coordination sphere a) b) c) d) Bis(ethylenediamine)hydroxonitroiron(II) Sodium hexanitritocobaltate(III) Tris(bipyridine)ruthenium(III) iodide Tetrakis(triphenylphosphine) nickel(0)

3. Write the formula and draw the structures for each of the following compounds; make use of brackets to indicate the coordination sphere a) b) c) d) Bis(ethylenediamine)hydroxonitroiron(II) Sodium hexanitritocobaltate(III) Tris(bipyridine)ruthenium(III) iodide Tetrakis(triphenylphosphine) nickel(0)

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter19: Transition Metals And Coordination Chemistry

Section: Chapter Questions

Problem 27E: Give the coordination numbers and write the formulas for each of the following, including all...

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A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a volumetric flask. Cobalt was determined by treating 25.00-mL aliquots of this diluted solution as follows: Assume that the Co(II)-ligand chelate obeys Beer’s law, and calculate the percentage of cobalt in the original sample.
a. In the absorption spectrum of the complex ion Cr(NCS)63, there is a band corresponding to the absorption of a photon of light with an energy of 1.75 104 cm-1. Given 1 cm1 = 1.986 1023 J, what is the wavelength of this photon? b. The CrNC bond angle in Cr(NCS)63 is predicted to be 180. What is the hybridization of the N atom in the Ncs- ligand when a Lewis acid-base reaction occurs between Cr3+ and NCs- that would give a 180 CrNC bond angle? Cr(NCS)63 undergoes substitution by ethylenediamine (en) according to the equation Cr(NCS)63+2enCr(NCS)2(en)2++4NCS Does Cr(NCS)2(en)2+ exhibit geometric isomerism? Does Cr(NCS)2(en)2+ exhibit optical isomerism?
Give the coordination numbers and write the formulas for each of the following, including all isomers where appropriate: (a) tetrahydroxozincate(ll) ion (tetrahedral). (b) hexacyanopalladate(IV) ion. (c) dichlomaurate(I) ion (note that aurum is Latin for "gold"). (d) diamminedichloroplatinum(Il). (e) potassium diamminetetrachlorochromate(III). (f) hexaamminecobalt(III) hexacyanochromate(III). (g) dibromobis(ethylenediamine) cobalt(III) nitrate
Which of the following statement(s) is( are) true? a. The coordination number of a metal ion in an octahedral complex ion is 8. b. All tetrahedral complex ions are low-spin. c. The formula for triaquatrianuninechromiwn(III) sulfate is [Cr(H2O)3(NH3)](SO4)3. d. The electron configuration of Hf2+ is [Xe]4f126s2. e. Hemoglobin contains Fe3+.
please answer the following question: 1. discuss how crystal field theory satisfactorily explains the existence of colour in some coordination complexes
. Explain why octahedral coordination complexes withthree and eight d electrons on the central metal atom areparticularly stable. Under what circumstances would youexpect complexes with five or six d electrons on the central metal atom to be particularly stable?
The SCN – ligand is an ambidentate ligand. When it is S-bound, it has the name thiocyanate, and the M–S–C bond angle is bent. When it is N-bound, it has the name isothiocyanate, and the M–N–C bond angle is ~180 ̊. (a) Draw Lewis dot structures for M–NCS and M–SCN that explain the observed geometries. (b) Predict the structures of the metal-ligand bonding when SCN– reacts with Fe 2+ to form the bright red Fe(SCN)2+ ion. (c) Predict the method of bonding when Cr3+ reacts with the SCN – ligand
Consider the coordination complexes below. In principle, which of them canexhibit stereochemistry?