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1.19 A; C=C double bond length in alkenes = 1.35 Å; C-C single bond length: %3!

1.19 A; C=C double bond length in alkenes = 1.35 Å; C-C single bond length: %3!

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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c. Consider the two Pt complexes shown below. Discuss the oxidation states of the two Pt centers along with the bonding details between the alkyne ligands and the Pt center. What is the charge and bond order for the "triple-bond" in the alkyne ligand for each complex? Some useful information: C=C triple bond length in a free alkyne = 1.19 Å; C=C double bond length in alkenes = 1.35 Å; C-C single bond length = 1.54 Å. Complex A CH3 Ph2MeP- Pt -PMePh2 H3C CH3 Pt-CH, = 2.10 A Pt-PR, = 2.29 Á Pt-alkyne = 2.28 A C=C = 1,22 A Me-C=C = 164° Alkyne C=C carbons are perpendicular to the square plane of the complex (Pt, P, & CH3 atoms) Complex B Ph3P PPH3 CI Pt-PR3 = 2.28 A Pt-alkyne = 2.05 Á C=C = 1.38 Â Me-C=C = 134° Alkyne carbons are in the square plane of the complex
Transcribed Image Text:c. Consider the two Pt complexes shown below. Discuss the oxidation states of the two Pt centers along with the bonding details between the alkyne ligands and the Pt center. What is the charge and bond order for the "triple-bond" in the alkyne ligand for each complex? Some useful information: C=C triple bond length in a free alkyne = 1.19 Å; C=C double bond length in alkenes = 1.35 Å; C-C single bond length = 1.54 Å. Complex A CH3 Ph2MeP- Pt -PMePh2 H3C CH3 Pt-CH, = 2.10 A Pt-PR, = 2.29 Á Pt-alkyne = 2.28 A C=C = 1,22 A Me-C=C = 164° Alkyne C=C carbons are perpendicular to the square plane of the complex (Pt, P, & CH3 atoms) Complex B Ph3P PPH3 CI Pt-PR3 = 2.28 A Pt-alkyne = 2.05 Á C=C = 1.38 Â Me-C=C = 134° Alkyne carbons are in the square plane of the complex
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