The photochemistry of (CO)4Mn(μ-η3: η6-C3H4C6H5)Cr(CO) 3 in frozen gas matrices at ca. 12 K

Paul A. Hamley; Marina K. Kuimova; Alexander J. Blake; Catherine Hughes; Simon B.L. Lyons; Martyn Poliakoff; Anthony H. Wright; Michael W. George

doi:10.1039/b206697a

The photochemistry of (CO)₄Mn(μ-η³: η⁶-C₃H₄C₆H₅)Cr(CO) ₃ in frozen gas matrices at ca. 12 K

Paul A. Hamley
, Marina K. Kuimova
, Alexander J. Blake
, Catherine Hughes
, Simon B.L. Lyons
, Martyn Poliakoff
, Anthony H. Wright
, Michael W. George^*

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

4 Citations (Scopus)

Abstract

We have investigated the photochemistry of [(CO)₄Mn(μ- η³:η⁶-C₃H₄C ₆H₅)Cr(CO)₃] in low temperature matrices. In an argon matrix we see CO loss from only the Mn end of the molecule and [(CO) ₃Mn(μ-η³:η⁶-C₃H ₄C₆H₅)Cr(CO)₃] is the only observed photoproduct. However, in a N₂ matrix photosubstitution is observed at both metal centres and we were able to identify [(CO)₄Mn(μ- η³:η⁶-C₃H₄C ₆H₅)Cr(CO)₂(N₂)], [(CO) ₃(N₂)Mn(μ-η³:η⁶-C ₃H₄C₆H₅)Cr(CO)₃] and [(CO)₂(N₂)₂Mn(μ-η³: η⁶-C₃H₄C₆H₅)Cr(CO) ₃]. In all these experiments, characterisation of photoproducts was aided by comparison with experiments using the mononuclear fragments [(η⁶-C₆H₅C₂H₅)Cr(CO) ₃] and [η³-C₃H₄C ₆H₅)Mn(CO)₄] where we were able to characterise [(η³-C₃H₄C₆H ₅)Mn(CO)₂], [(η⁶-C₆H ₅C₂H₅)Cr(CO)₂(N₂)], [(η³-C₃H₄C₆H₅)Mn(CO) ₃(N₂)] and [(η³-C₃H ₄C₆H₅)Mn(CO)₂(N₂) ₂].

Original language	English
Pages (from-to)	1545-1550
Number of pages	6
Journal	Dalton Transactions
Issue number	8
DOIs	https://doi.org/10.1039/b206697a
Publication status	Published - 21 Apr 2003
Externally published	Yes

ASJC Scopus subject areas

Inorganic Chemistry

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10.1039/b206697a

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@article{649e1dcf8cd141569f9e9eeed35aedb3,

title = "The photochemistry of (CO)4Mn(μ-η3: η6-C3H4C6H5)Cr(CO) 3 in frozen gas matrices at ca. 12 K",

abstract = "We have investigated the photochemistry of [(CO)4Mn(μ- η3:η6-C3H4C 6H5)Cr(CO)3] in low temperature matrices. In an argon matrix we see CO loss from only the Mn end of the molecule and [(CO) 3Mn(μ-η3:η6-C3H 4C6H5)Cr(CO)3] is the only observed photoproduct. However, in a N2 matrix photosubstitution is observed at both metal centres and we were able to identify [(CO)4Mn(μ- η3:η6-C3H4C 6H5)Cr(CO)2(N2)], [(CO) 3(N2)Mn(μ-η3:η6-C 3H4C6H5)Cr(CO)3] and [(CO)2(N2)2Mn(μ-η3: η6-C3H4C6H5)Cr(CO) 3]. In all these experiments, characterisation of photoproducts was aided by comparison with experiments using the mononuclear fragments [(η6-C6H5C2H5)Cr(CO) 3] and [η3-C3H4C 6H5)Mn(CO)4] where we were able to characterise [(η3-C3H4C6H 5)Mn(CO)2], [(η6-C6H 5C2H5)Cr(CO)2(N2)], [(η3-C3H4C6H5)Mn(CO) 3(N2)] and [(η3-C3H 4C6H5)Mn(CO)2(N2) 2].",

author = "Hamley, \{Paul A.\} and Kuimova, \{Marina K.\} and Blake, \{Alexander J.\} and Catherine Hughes and Lyons, \{Simon B.L.\} and Martyn Poliakoff and Wright, \{Anthony H.\} and George, \{Michael W.\}",

year = "2003",

month = apr,

day = "21",

doi = "10.1039/b206697a",

language = "English",

pages = "1545--1550",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "8",

}

TY - JOUR

T1 - The photochemistry of (CO)4Mn(μ-η3: η6-C3H4C6H5)Cr(CO) 3 in frozen gas matrices at ca. 12 K

AU - Hamley, Paul A.

AU - Kuimova, Marina K.

AU - Blake, Alexander J.

AU - Hughes, Catherine

AU - Lyons, Simon B.L.

AU - Poliakoff, Martyn

AU - Wright, Anthony H.

AU - George, Michael W.

PY - 2003/4/21

Y1 - 2003/4/21

N2 - We have investigated the photochemistry of [(CO)4Mn(μ- η3:η6-C3H4C 6H5)Cr(CO)3] in low temperature matrices. In an argon matrix we see CO loss from only the Mn end of the molecule and [(CO) 3Mn(μ-η3:η6-C3H 4C6H5)Cr(CO)3] is the only observed photoproduct. However, in a N2 matrix photosubstitution is observed at both metal centres and we were able to identify [(CO)4Mn(μ- η3:η6-C3H4C 6H5)Cr(CO)2(N2)], [(CO) 3(N2)Mn(μ-η3:η6-C 3H4C6H5)Cr(CO)3] and [(CO)2(N2)2Mn(μ-η3: η6-C3H4C6H5)Cr(CO) 3]. In all these experiments, characterisation of photoproducts was aided by comparison with experiments using the mononuclear fragments [(η6-C6H5C2H5)Cr(CO) 3] and [η3-C3H4C 6H5)Mn(CO)4] where we were able to characterise [(η3-C3H4C6H 5)Mn(CO)2], [(η6-C6H 5C2H5)Cr(CO)2(N2)], [(η3-C3H4C6H5)Mn(CO) 3(N2)] and [(η3-C3H 4C6H5)Mn(CO)2(N2) 2].

AB - We have investigated the photochemistry of [(CO)4Mn(μ- η3:η6-C3H4C 6H5)Cr(CO)3] in low temperature matrices. In an argon matrix we see CO loss from only the Mn end of the molecule and [(CO) 3Mn(μ-η3:η6-C3H 4C6H5)Cr(CO)3] is the only observed photoproduct. However, in a N2 matrix photosubstitution is observed at both metal centres and we were able to identify [(CO)4Mn(μ- η3:η6-C3H4C 6H5)Cr(CO)2(N2)], [(CO) 3(N2)Mn(μ-η3:η6-C 3H4C6H5)Cr(CO)3] and [(CO)2(N2)2Mn(μ-η3: η6-C3H4C6H5)Cr(CO) 3]. In all these experiments, characterisation of photoproducts was aided by comparison with experiments using the mononuclear fragments [(η6-C6H5C2H5)Cr(CO) 3] and [η3-C3H4C 6H5)Mn(CO)4] where we were able to characterise [(η3-C3H4C6H 5)Mn(CO)2], [(η6-C6H 5C2H5)Cr(CO)2(N2)], [(η3-C3H4C6H5)Mn(CO) 3(N2)] and [(η3-C3H 4C6H5)Mn(CO)2(N2) 2].

UR - https://www.scopus.com/pages/publications/24044442391

U2 - 10.1039/b206697a

DO - 10.1039/b206697a

M3 - Article

AN - SCOPUS:24044442391

SN - 1477-9226

SP - 1545

EP - 1550

JO - Dalton Transactions

JF - Dalton Transactions

IS - 8

ER -

The photochemistry of (CO)₄Mn(μ-η³: η⁶-C₃H₄C₆H₅)Cr(CO) ₃ in frozen gas matrices at ca. 12 K

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