Evidence for a radical-forming process during the reaction of solid NH 4SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)2

Donald Barr; Michael J. Doyle; Simon R. Drake; Paul R. Raithby; Ronald Snaith; Dominic S. Wright

doi:10.1039/C39880001415

Evidence for a radical-forming process during the reaction of solid NH ₄SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)₂

Donald Barr, Michael J. Doyle, Simon R. Drake, Paul R. Raithby, Ronald Snaith, Dominic S. Wright

University of Cambridge

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

Abstract

The complex (LiSCN·2HMPA)_n, (1) [HMPA = O:P(NMe ₂)₃], was synthesised by the reaction of solid NH ₄SCN with BuⁿLi and HMPA (1: 1: 2 molar ratios) in toluene and shown to have an asymmetrical dimeric structure (n = 2) comprising terminal (HMPA)₂Li- and (SCN)₂Li- units whose metal centres are then bridged by two μ₂-HMPA ligands; e.s.r. spectroscopic investigations on the reactions system (which proceeds through a series of colours) have detected the intermediacy of thiocyanate-based radical species.

Original language	English
Pages (from-to)	1415-1417
Number of pages	3
Journal	Journal of the Chemical Society, Chemical Communications
Issue number	21
DOIs	https://doi.org/10.1039/C39880001415
Publication status	Published - 1988

ASJC Scopus subject areas

Molecular Medicine

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Barr, D., Doyle, M. J., Drake, S. R., Raithby, P. R., Snaith, R., & Wright, D. S. (1988). Evidence for a radical-forming process during the reaction of solid NH ₄SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)₂. Journal of the Chemical Society, Chemical Communications, (21), 1415-1417. https://doi.org/10.1039/C39880001415

Evidence for a radical-forming process during the reaction of solid NH ₄SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)₂. / Barr, Donald; Doyle, Michael J.; Drake, Simon R. et al.
In: Journal of the Chemical Society, Chemical Communications, No. 21, 1988, p. 1415-1417.

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

Barr, D, Doyle, MJ, Drake, SR, Raithby, PR, Snaith, R & Wright, DS 1988, 'Evidence for a radical-forming process during the reaction of solid NH ₄SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)₂', Journal of the Chemical Society, Chemical Communications, no. 21, pp. 1415-1417. https://doi.org/10.1039/C39880001415

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title = "Evidence for a radical-forming process during the reaction of solid NH 4SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)2",

abstract = "The complex (LiSCN·2HMPA)n, (1) [HMPA = O:P(NMe 2)3], was synthesised by the reaction of solid NH 4SCN with BunLi and HMPA (1: 1: 2 molar ratios) in toluene and shown to have an asymmetrical dimeric structure (n = 2) comprising terminal (HMPA)2Li- and (SCN)2Li- units whose metal centres are then bridged by two μ2-HMPA ligands; e.s.r. spectroscopic investigations on the reactions system (which proceeds through a series of colours) have detected the intermediacy of thiocyanate-based radical species.",

author = "Donald Barr and Doyle, {Michael J.} and Drake, {Simon R.} and Raithby, {Paul R.} and Ronald Snaith and Wright, {Dominic S.}",

year = "1988",

doi = "10.1039/C39880001415",

language = "English",

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journal = "Journal of the Chemical Society, Chemical Communications",

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T1 - Evidence for a radical-forming process during the reaction of solid NH 4SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene

T2 - Crystal structure of the product, (LiNCS·2HMPA)2

AU - Barr, Donald

AU - Doyle, Michael J.

AU - Drake, Simon R.

AU - Raithby, Paul R.

AU - Snaith, Ronald

AU - Wright, Dominic S.

PY - 1988

Y1 - 1988

N2 - The complex (LiSCN·2HMPA)n, (1) [HMPA = O:P(NMe 2)3], was synthesised by the reaction of solid NH 4SCN with BunLi and HMPA (1: 1: 2 molar ratios) in toluene and shown to have an asymmetrical dimeric structure (n = 2) comprising terminal (HMPA)2Li- and (SCN)2Li- units whose metal centres are then bridged by two μ2-HMPA ligands; e.s.r. spectroscopic investigations on the reactions system (which proceeds through a series of colours) have detected the intermediacy of thiocyanate-based radical species.

AB - The complex (LiSCN·2HMPA)n, (1) [HMPA = O:P(NMe 2)3], was synthesised by the reaction of solid NH 4SCN with BunLi and HMPA (1: 1: 2 molar ratios) in toluene and shown to have an asymmetrical dimeric structure (n = 2) comprising terminal (HMPA)2Li- and (SCN)2Li- units whose metal centres are then bridged by two μ2-HMPA ligands; e.s.r. spectroscopic investigations on the reactions system (which proceeds through a series of colours) have detected the intermediacy of thiocyanate-based radical species.

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DO - 10.1039/C39880001415

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JO - Journal of the Chemical Society, Chemical Communications

JF - Journal of the Chemical Society, Chemical Communications

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Evidence for a radical-forming process during the reaction of solid NH ₄SCN with n-butyl-lithium and hexamethylphosphosphoramide (HMPA) in toluene: Crystal structure of the product, (LiNCS·2HMPA)₂

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