Kinetic deuterium isotope effects on μ-hydrlde and carbonyl ligand migrations

Edward Rosenberg; Eric V. Anslyn; Claudia Barner-Thorsen; Silvio Aime; Domenico Osella; R. Gobetto; Luciano Milone

doi:10.1021/om00090a003

Kinetic deuterium isotope effects on μ-hydrlde and carbonyl ligand migrations

Edward Rosenberg, Eric V. Anslyn, Claudia Barner-Thorsen, Silvio Aime, Domenico Osella, R. Gobetto, Luciano Milone

Research output: Contribution to journal › Article › peer-review

Abstract

Kinetic deuterium isotope effects have been observed on the axial-radial carbonyl exchange process at hydride-bridged metal atoms in (μ-H)Os₃(CO)₁₀L (L = P(C₆H₆)₃, CN-t-Bu) and (μ-H)Ru₃(CO)₉(μ₃-C₂-t-Bu) by variable-termperature and ¹³C NMR techniques. In (μ-H)₂Os₃(CO)₁₀ this effect is not observed. Kinetic deuterium isotope effects have also been measured directly on the site exchange of the magnetically inequivalent hydrides in (μ-H)₂Ru₃(CO)₉(μ₃-CH=C-t-Bu)²⁺, for the mono-and dideuterio derivatives by ¹H and ²H NMR. The meaning of these isotope effects for the particular ligand migrations involved is discussed.

Original language	English
Pages (from-to)	1790-1795
Number of pages	6
Journal	Organometallics
Volume	3
Issue number	12
DOIs	https://doi.org/10.1021/om00090a003
Publication status	Published - Apr 1984
Externally published	Yes

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title = "Kinetic deuterium isotope effects on μ-hydrlde and carbonyl ligand migrations",

abstract = "Kinetic deuterium isotope effects have been observed on the axial-radial carbonyl exchange process at hydride-bridged metal atoms in (μ-H)Os3(CO)10L (L = P(C6H6)3, CN-t-Bu) and (μ-H)Ru3(CO)9(μ3-C2-t-Bu) by variable-termperature and 13C NMR techniques. In (μ-H)2Os3(CO)10 this effect is not observed. Kinetic deuterium isotope effects have also been measured directly on the site exchange of the magnetically inequivalent hydrides in (μ-H)2Ru3(CO)9(μ3-CH=C-t-Bu)2+, for the mono-and dideuterio derivatives by 1H and 2H NMR. The meaning of these isotope effects for the particular ligand migrations involved is discussed.",

author = "Edward Rosenberg and Anslyn, {Eric V.} and Claudia Barner-Thorsen and Silvio Aime and Domenico Osella and R. Gobetto and Luciano Milone",

year = "1984",

month = apr,

doi = "10.1021/om00090a003",

language = "English",

volume = "3",

pages = "1790--1795",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Kinetic deuterium isotope effects on μ-hydrlde and carbonyl ligand migrations

AU - Rosenberg, Edward

AU - Anslyn, Eric V.

AU - Barner-Thorsen, Claudia

AU - Aime, Silvio

AU - Osella, Domenico

AU - Gobetto, R.

AU - Milone, Luciano

PY - 1984/4

Y1 - 1984/4

N2 - Kinetic deuterium isotope effects have been observed on the axial-radial carbonyl exchange process at hydride-bridged metal atoms in (μ-H)Os3(CO)10L (L = P(C6H6)3, CN-t-Bu) and (μ-H)Ru3(CO)9(μ3-C2-t-Bu) by variable-termperature and 13C NMR techniques. In (μ-H)2Os3(CO)10 this effect is not observed. Kinetic deuterium isotope effects have also been measured directly on the site exchange of the magnetically inequivalent hydrides in (μ-H)2Ru3(CO)9(μ3-CH=C-t-Bu)2+, for the mono-and dideuterio derivatives by 1H and 2H NMR. The meaning of these isotope effects for the particular ligand migrations involved is discussed.

AB - Kinetic deuterium isotope effects have been observed on the axial-radial carbonyl exchange process at hydride-bridged metal atoms in (μ-H)Os3(CO)10L (L = P(C6H6)3, CN-t-Bu) and (μ-H)Ru3(CO)9(μ3-C2-t-Bu) by variable-termperature and 13C NMR techniques. In (μ-H)2Os3(CO)10 this effect is not observed. Kinetic deuterium isotope effects have also been measured directly on the site exchange of the magnetically inequivalent hydrides in (μ-H)2Ru3(CO)9(μ3-CH=C-t-Bu)2+, for the mono-and dideuterio derivatives by 1H and 2H NMR. The meaning of these isotope effects for the particular ligand migrations involved is discussed.

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U2 - 10.1021/om00090a003

DO - 10.1021/om00090a003

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SP - 1790

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JO - Organometallics

JF - Organometallics

IS - 12

ER -

Kinetic deuterium isotope effects on μ-hydrlde and carbonyl ligand migrations

Abstract

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