A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex

D  BARR; M J  DOYLE; Robert Mulvey; P R  RAITHBY; D  REED; R  SNAITH; D S  WRIGHT

doi:10.1039/C39890000318

A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex

D BARR, M J DOYLE, Robert Mulvey, P R RAITHBY, D REED, R SNAITH, D S WRIGHT

Pure And Applied Chemistry

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

65 Citations (Scopus)

Abstract

Reaction of solid NH4Br with BunLi and HMPA (hexamethylphosphoramide)(1 : 1 : 2 ratio) in toluene produces (LiBr)2·3HMPA·toluene, (1), shown by X-ray crystallography to contain (LiBr)2·3HMPA molecules whose two terminal Li–Br units are linked by three µ2-HMPA ligands and with toluene molecules lying between these units in the lattice; in arene solutions, the (LiBr)2·3HMPA units remain intact, giving rise in 7Li n.m.r. spectra to 1 : 3 : 3 : 1 quartets caused by through-bond (OP) coupling of each 7Li nucleus to three 31P(HMPA) centres.

Original language	English
Pages (from-to)	318-319
Number of pages	2
Journal	Journal of the Chemical Society, Chemical Communications
Issue number	5
DOIs	https://doi.org/10.1039/C39890000318
Publication status	Published - 1 Mar 1989

Keywords

lithium halide complex
X-ray crystallography
lattice

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10.1039/C39890000318

Cite this

BARR, D., DOYLE, M. J., Mulvey, R., RAITHBY, P. R., REED, D., SNAITH, R., & WRIGHT, D. S. (1989). A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex. Journal of the Chemical Society, Chemical Communications, (5), 318-319. https://doi.org/10.1039/C39890000318

BARR, D ; DOYLE, M J ; Mulvey, Robert ; RAITHBY, P R ; REED, D ; SNAITH, R ; WRIGHT, D S . / A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex. In: Journal of the Chemical Society, Chemical Communications. 1989 ; No. 5. pp. 318-319.

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title = "A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex",

abstract = "Reaction of solid NH4Br with BunLi and HMPA (hexamethylphosphoramide)(1 : 1 : 2 ratio) in toluene produces (LiBr)2·3HMPA·toluene, (1), shown by X-ray crystallography to contain (LiBr)2·3HMPA molecules whose two terminal Li–Br units are linked by three µ2-HMPA ligands and with toluene molecules lying between these units in the lattice; in arene solutions, the (LiBr)2·3HMPA units remain intact, giving rise in 7Li n.m.r. spectra to 1 : 3 : 3 : 1 quartets caused by through-bond (OP) coupling of each 7Li nucleus to three 31P(HMPA) centres.",

keywords = "lithium halide complex , X-ray crystallography , lattice",

author = "D BARR and DOYLE, {M J} and Robert Mulvey and RAITHBY, {P R} and D REED and R SNAITH and WRIGHT, {D S}",

year = "1989",

month = mar,

day = "1",

doi = "10.1039/C39890000318",

language = "English",

pages = "318--319",

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

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BARR, D, DOYLE, MJ, Mulvey, R, RAITHBY, PR, REED, D, SNAITH, R & WRIGHT, DS 1989, 'A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex', Journal of the Chemical Society, Chemical Communications, no. 5, pp. 318-319. https://doi.org/10.1039/C39890000318

A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex. / BARR, D ; DOYLE, M J ; Mulvey, Robert; RAITHBY, P R ; REED, D ; SNAITH, R ; WRIGHT, D S .

In: Journal of the Chemical Society, Chemical Communications, No. 5, 01.03.1989, p. 318-319.

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

TY - JOUR

T1 - A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex

AU - BARR, D

AU - DOYLE, M J

AU - Mulvey, Robert

AU - RAITHBY, P R

AU - REED, D

AU - SNAITH, R

AU - WRIGHT, D S

PY - 1989/3/1

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N2 - Reaction of solid NH4Br with BunLi and HMPA (hexamethylphosphoramide)(1 : 1 : 2 ratio) in toluene produces (LiBr)2·3HMPA·toluene, (1), shown by X-ray crystallography to contain (LiBr)2·3HMPA molecules whose two terminal Li–Br units are linked by three µ2-HMPA ligands and with toluene molecules lying between these units in the lattice; in arene solutions, the (LiBr)2·3HMPA units remain intact, giving rise in 7Li n.m.r. spectra to 1 : 3 : 3 : 1 quartets caused by through-bond (OP) coupling of each 7Li nucleus to three 31P(HMPA) centres.

AB - Reaction of solid NH4Br with BunLi and HMPA (hexamethylphosphoramide)(1 : 1 : 2 ratio) in toluene produces (LiBr)2·3HMPA·toluene, (1), shown by X-ray crystallography to contain (LiBr)2·3HMPA molecules whose two terminal Li–Br units are linked by three µ2-HMPA ligands and with toluene molecules lying between these units in the lattice; in arene solutions, the (LiBr)2·3HMPA units remain intact, giving rise in 7Li n.m.r. spectra to 1 : 3 : 3 : 1 quartets caused by through-bond (OP) coupling of each 7Li nucleus to three 31P(HMPA) centres.

KW - lithium halide complex

KW - X-ray crystallography

KW - lattice

U2 - 10.1039/C39890000318

DO - 10.1039/C39890000318

M3 - Article

SP - 318

EP - 319

JO - Journal of the Chemical Society, Chemical Communications

JF - Journal of the Chemical Society, Chemical Communications

SN - 0022-4936

IS - 5

ER -

BARR D, DOYLE MJ, Mulvey R, RAITHBY PR, REED D, SNAITH R et al. A unique lithium halide complex, [(LiBr)2·3HMPA·toluene]: synthesis from reaction of solid NH4Br with BunLi in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ2-HMPA ligands, and detection of 7Li 31P coupling in solutions of the complex. Journal of the Chemical Society, Chemical Communications. 1989 Mar 1;(5):318-319. https://doi.org/10.1039/C39890000318