Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature

Methylzinc tetrahydroborate, MeZnBH4, has been prepared by two routes and initially characterized by elemental analysis and its spectroscopic properties. The structure has been determined by X-ray crystallography at 150 K [trigonal, space group R3c, a = b = 15.831(10), c = 8.36(2) Å, Z = 18, R = 0.0...

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Main Authors: Aldridge, S, Blake, A, Downs, A, Parsons, S, Pulham, C
Format: Journal article
Language:English
Published: 1996
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author Aldridge, S
Blake, A
Downs, A
Parsons, S
Pulham, C
author_facet Aldridge, S
Blake, A
Downs, A
Parsons, S
Pulham, C
author_sort Aldridge, S
collection OXFORD
description Methylzinc tetrahydroborate, MeZnBH4, has been prepared by two routes and initially characterized by elemental analysis and its spectroscopic properties. The structure has been determined by X-ray crystallography at 150 K [trigonal, space group R3c, a = b = 15.831(10), c = 8.36(2) Å, Z = 18, R = 0.072] to reveal helical polymers in which MeZn+ and BH4- units alternate, with the latter functioning as a bidentate ligand with respect to both of the adjacent metal atoms. It thus resembles the structure of solid Be(BH4)2 with the difference that the zinc is five-co-ordinated, the Me and H ligands adopting a distorted square-pyramidal geometry. Chemical properties of methylzinc tetrahydroborate investigated include its thermal decomposition and its reactions with ammonia, dimethyl sulfide, triphenylphosphine and CO; disproportionation into Me2Zn and Zn(BH4)2 appears to be a common feature of its chemistry.
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spelling oxford-uuid:62dab271-ef32-499d-b415-383fcc4b41b22022-03-26T18:08:55ZMethylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperatureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:62dab271-ef32-499d-b415-383fcc4b41b2EnglishSymplectic Elements at Oxford1996Aldridge, SBlake, ADowns, AParsons, SPulham, CMethylzinc tetrahydroborate, MeZnBH4, has been prepared by two routes and initially characterized by elemental analysis and its spectroscopic properties. The structure has been determined by X-ray crystallography at 150 K [trigonal, space group R3c, a = b = 15.831(10), c = 8.36(2) Å, Z = 18, R = 0.072] to reveal helical polymers in which MeZn+ and BH4- units alternate, with the latter functioning as a bidentate ligand with respect to both of the adjacent metal atoms. It thus resembles the structure of solid Be(BH4)2 with the difference that the zinc is five-co-ordinated, the Me and H ligands adopting a distorted square-pyramidal geometry. Chemical properties of methylzinc tetrahydroborate investigated include its thermal decomposition and its reactions with ammonia, dimethyl sulfide, triphenylphosphine and CO; disproportionation into Me2Zn and Zn(BH4)2 appears to be a common feature of its chemistry.
spellingShingle Aldridge, S
Blake, A
Downs, A
Parsons, S
Pulham, C
Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature
title Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature
title_full Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature
title_fullStr Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature
title_full_unstemmed Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature
title_short Methylzinc tetrahydroborate: Physical and chemical properties and crystal structure at low temperature
title_sort methylzinc tetrahydroborate physical and chemical properties and crystal structure at low temperature
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AT parsonss methylzinctetrahydroboratephysicalandchemicalpropertiesandcrystalstructureatlowtemperature
AT pulhamc methylzinctetrahydroboratephysicalandchemicalpropertiesandcrystalstructureatlowtemperature