Gas-Phase UV Photoelectron Spectra of Some Edge-Bridged Decacarbonyltriosmium Clusters

Gaetano Granozzi; Renzo Benoni; Eugenio Tondello; Maurizio Casarin; Silvio Aime; Domenico Osellalc

doi:10.1021/ic00168a016

Gas-Phase UV Photoelectron Spectra of Some Edge-Bridged Decacarbonyltriosmium Clusters

Gaetano Granozzi
, Renzo Benoni
, Eugenio Tondello
, Maurizio Casarin
, Silvio Aime
, Domenico Osellalc

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

Abstract

The gas-phase He I and He II excited UV PE spectra of several (X)(Y)Os₃(CO)₁₀ cluster derivatives (X, Y = H, OR, SR, Cl, Br) are reported. A qualitative discussion of the spectral data has been made on the basis of MOs that predominantly represent Os-Os bonds, t_2g-like nonbonding metallic pairs, or (μ-X)(m-Y)Os₂ bridge bonds. Investigation of the He II spectrum was crucial for assignment. The similarity found between the spectrum of H₂Os₃(CO)₁₀ and those of the two series (H)(Y)Os₃(CO)₁₀ and (Y)₂Os₃(CO)₁₀ points to a very similar bonding pattern in all the compounds. Evidence for a direct weak interaction between the two bridged osmium atoms via the t_2g-like set has been reported. This source of Os-Os bonding progressively reduces its importance on going from H₂Os₃(CO)₁₀ to (H)(Y)Os₃(CO)₁₀ and (Y)₂Os₃(CO)₁₀.

Original language	English
Pages (from-to)	3899-3903
Number of pages	5
Journal	Inorganic Chemistry
Volume	22
Issue number	26
DOIs	https://doi.org/10.1021/ic00168a016
Publication status	Published - Dec 1983
Externally published	Yes

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@article{f10bf20f4558477186639ad75dcd5e11,

title = "Gas-Phase UV Photoelectron Spectra of Some Edge-Bridged Decacarbonyltriosmium Clusters",

abstract = "The gas-phase He I and He II excited UV PE spectra of several (X)(Y)Os3(CO)10 cluster derivatives (X, Y = H, OR, SR, Cl, Br) are reported. A qualitative discussion of the spectral data has been made on the basis of MOs that predominantly represent Os-Os bonds, t2g-like nonbonding metallic pairs, or (μ-X)(m-Y)Os2 bridge bonds. Investigation of the He II spectrum was crucial for assignment. The similarity found between the spectrum of H2Os3(CO)10 and those of the two series (H)(Y)Os3(CO)10 and (Y)2Os3(CO)10 points to a very similar bonding pattern in all the compounds. Evidence for a direct weak interaction between the two bridged osmium atoms via the t2g-like set has been reported. This source of Os-Os bonding progressively reduces its importance on going from H2Os3(CO)10 to (H)(Y)Os3(CO)10 and (Y)2Os3(CO)10.",

author = "Gaetano Granozzi and Renzo Benoni and Eugenio Tondello and Maurizio Casarin and Silvio Aime and Domenico Osellalc",

year = "1983",

month = dec,

doi = "10.1021/ic00168a016",

language = "English",

volume = "22",

pages = "3899--3903",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "26",

}

TY - JOUR

T1 - Gas-Phase UV Photoelectron Spectra of Some Edge-Bridged Decacarbonyltriosmium Clusters

AU - Granozzi, Gaetano

AU - Benoni, Renzo

AU - Tondello, Eugenio

AU - Casarin, Maurizio

AU - Aime, Silvio

AU - Osellalc, Domenico

PY - 1983/12

Y1 - 1983/12

N2 - The gas-phase He I and He II excited UV PE spectra of several (X)(Y)Os3(CO)10 cluster derivatives (X, Y = H, OR, SR, Cl, Br) are reported. A qualitative discussion of the spectral data has been made on the basis of MOs that predominantly represent Os-Os bonds, t2g-like nonbonding metallic pairs, or (μ-X)(m-Y)Os2 bridge bonds. Investigation of the He II spectrum was crucial for assignment. The similarity found between the spectrum of H2Os3(CO)10 and those of the two series (H)(Y)Os3(CO)10 and (Y)2Os3(CO)10 points to a very similar bonding pattern in all the compounds. Evidence for a direct weak interaction between the two bridged osmium atoms via the t2g-like set has been reported. This source of Os-Os bonding progressively reduces its importance on going from H2Os3(CO)10 to (H)(Y)Os3(CO)10 and (Y)2Os3(CO)10.

AB - The gas-phase He I and He II excited UV PE spectra of several (X)(Y)Os3(CO)10 cluster derivatives (X, Y = H, OR, SR, Cl, Br) are reported. A qualitative discussion of the spectral data has been made on the basis of MOs that predominantly represent Os-Os bonds, t2g-like nonbonding metallic pairs, or (μ-X)(m-Y)Os2 bridge bonds. Investigation of the He II spectrum was crucial for assignment. The similarity found between the spectrum of H2Os3(CO)10 and those of the two series (H)(Y)Os3(CO)10 and (Y)2Os3(CO)10 points to a very similar bonding pattern in all the compounds. Evidence for a direct weak interaction between the two bridged osmium atoms via the t2g-like set has been reported. This source of Os-Os bonding progressively reduces its importance on going from H2Os3(CO)10 to (H)(Y)Os3(CO)10 and (Y)2Os3(CO)10.

UR - https://www.scopus.com/pages/publications/4243551334

U2 - 10.1021/ic00168a016

DO - 10.1021/ic00168a016

M3 - Article

SN - 0020-1669

VL - 22

SP - 3899

EP - 3903

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 26

ER -

Gas-Phase UV Photoelectron Spectra of Some Edge-Bridged Decacarbonyltriosmium Clusters

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