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

Risultato della ricerca: Contributo su rivista › Articolo in rivista › 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.

Lingua originale	Inglese
pagine (da-a)	1790-1795
Numero di pagine	6
Rivista	Organometallics
Volume	3
Numero di pubblicazione	12
DOI	https://doi.org/10.1021/om00090a003
Stato di pubblicazione	Pubblicato - apr 1984
Pubblicato esternamente	Sì

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10.1021/om00090a003

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@article{1f92c30b7e1c42cebb8f28fb1af1a3d6,

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",

number = "12",

}

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.

UR - https://www.scopus.com/pages/publications/0010869414

U2 - 10.1021/om00090a003

DO - 10.1021/om00090a003

M3 - Article

SN - 0276-7333

VL - 3

SP - 1790

EP - 1795

JO - Organometallics

JF - Organometallics

IS - 12

ER -

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

Abstract

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