Rationalize the following observations.(i)From Fe(CO)s to Fe(CO):(PPH3)2, absorptions in the IR spectrum at2025 and 2000 cm1 will be replaced by a band at 1885 cm1.On forming [IrBr(CO)(n²-C2(CN)«)(PPh3)2], the C-C bond distance inC2(CN)a increases from 135 to 151 pm.(ii)

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Rationalize the following observations. (1) From Fe(CO)s to Fe(CO):(PPhs)2, absorptions in the IR spectrum at 2025 and 2000 cm" will be replaced by a band at 1885 cm'. (ii) On forming [IrBr(CO(n²-C2(CN)«)(PPh3)2], the C-C bond distance in C2(CN). increases from 135 to 151 pm.

Rationalize the following observations. (1) From Fe(CO)s to Fe(CO):(PPhs)2, absorptions in the IR spectrum at 2025 and 2000 cm" will be replaced by a band at 1885 cm'. (ii) On forming [IrBr(CO(n²-C2(CN)«)(PPh3)2], the C-C bond distance in C2(CN). increases from 135 to 151 pm.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.7QAP: A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a...

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Question

Rationalize the following observations.
(i)
From Fe(CO)s to Fe(CO):(PPH3)2, absorptions in the IR spectrum at
2025 and 2000 cm1 will be replaced by a band at 1885 cm1.
On forming [IrBr(CO)(n²-C2(CN)«)(PPh3)2], the C-C bond distance in
C2(CN)a increases from 135 to 151 pm.
(ii)

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