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Toward cationic gallane- and indanediyl complexes: synthetic approaches to three-coordinate halogallyl and -indyl precursors

Toward cationic gallane- and indanediyl complexes: synthetic approaches to three-coordinate halogallyl and -indyl precursors
Toward cationic gallane- and indanediyl complexes: synthetic approaches to three-coordinate halogallyl and -indyl precursors
Transition metal complexes containing ligands featuring three-coordinate, halide-functionalized gallium or indium donors represent key precursors to unsaturated cationic species of the type [LnM(EX)]+ via halide abstraction chemistry. Two routes to these three-coordinate systems have been demonstrated: (i) salt elimination, such as the reaction between Na[Cp*Fe(CO)2] and Mes*GaCl2 or Mes*InBr2 (Mes* = C6H2tBu3-2,4,6, supermesityl) to generate Cp*Fe(CO)2E(Mes*)X (3a, E = Ga, X = Cl; 5, E = In, X = Br), and (ii) insertion of a gallium(I) or indium(I) halide into a metal-halogen or metal-metal bond followed, where necessary, by substitution by a sterically bulky anionic nucleophile. Crystallographic studies have confirmed the presence of the target trigonal planar ligand systems both in gallyl/indyl complexes of the type LnM-E(Aryl)X and in halide-functionalized gallane- and indane-diyl systems of the type (LnM)2EX.
transition-metal complex, cp-asterisk-ga, structural-characterization, borylene complexes, crystal-structure, organometallic chemistry, insertion reactions, gallium compounds, diiron complexes, main-group
0276-7333
5879-5890
Bunn, Natalie R.
6ccc7174-d38b-429e-a731-0b367f59e8cf
Aldridge, Simon
de66448a-0f63-4b8b-ac55-f78dcd4830ea
Kays (née Coombs), Deborah L.
705b5f38-5e28-49fd-8710-7b907ca44f6e
Coombs, Natalie D.
248c48b7-8b41-4c98-bb3e-b306c0c37bdf
Day, Joanna K.
46d4e919-f0ad-4b85-8c88-ea5be867c605
Ooi, Li-ling
7c5b6dd6-59d6-4036-8d06-3746602ca1cb
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Bunn, Natalie R.
6ccc7174-d38b-429e-a731-0b367f59e8cf
Aldridge, Simon
de66448a-0f63-4b8b-ac55-f78dcd4830ea
Kays (née Coombs), Deborah L.
705b5f38-5e28-49fd-8710-7b907ca44f6e
Coombs, Natalie D.
248c48b7-8b41-4c98-bb3e-b306c0c37bdf
Day, Joanna K.
46d4e919-f0ad-4b85-8c88-ea5be867c605
Ooi, Li-ling
7c5b6dd6-59d6-4036-8d06-3746602ca1cb
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da

Bunn, Natalie R., Aldridge, Simon, Kays (née Coombs), Deborah L., Coombs, Natalie D., Day, Joanna K., Ooi, Li-ling, Coles, Simon J. and Hursthouse, Michael B. (2005) Toward cationic gallane- and indanediyl complexes: synthetic approaches to three-coordinate halogallyl and -indyl precursors. Organometallics, 24 (24), 5879-5890. (doi:10.1021/om050630f).

Record type: Article

Abstract

Transition metal complexes containing ligands featuring three-coordinate, halide-functionalized gallium or indium donors represent key precursors to unsaturated cationic species of the type [LnM(EX)]+ via halide abstraction chemistry. Two routes to these three-coordinate systems have been demonstrated: (i) salt elimination, such as the reaction between Na[Cp*Fe(CO)2] and Mes*GaCl2 or Mes*InBr2 (Mes* = C6H2tBu3-2,4,6, supermesityl) to generate Cp*Fe(CO)2E(Mes*)X (3a, E = Ga, X = Cl; 5, E = In, X = Br), and (ii) insertion of a gallium(I) or indium(I) halide into a metal-halogen or metal-metal bond followed, where necessary, by substitution by a sterically bulky anionic nucleophile. Crystallographic studies have confirmed the presence of the target trigonal planar ligand systems both in gallyl/indyl complexes of the type LnM-E(Aryl)X and in halide-functionalized gallane- and indane-diyl systems of the type (LnM)2EX.

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More information

Published date: 21 November 2005
Keywords: transition-metal complex, cp-asterisk-ga, structural-characterization, borylene complexes, crystal-structure, organometallic chemistry, insertion reactions, gallium compounds, diiron complexes, main-group

Identifiers

Local EPrints ID: 20749
URI: http://eprints.soton.ac.uk/id/eprint/20749
ISSN: 0276-7333
PURE UUID: 62394b4b-0229-4077-97cc-3f4b0a758939
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

Catalogue record

Date deposited: 02 Mar 2006
Last modified: 09 Jan 2022 02:59

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Contributors

Author: Natalie R. Bunn
Author: Simon Aldridge
Author: Deborah L. Kays (née Coombs)
Author: Natalie D. Coombs
Author: Joanna K. Day
Author: Li-ling Ooi
Author: Simon J. Coles ORCID iD

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