Organozinc aminoalcoholates: Synthesis, structure, and materials chemistry

Andrew L. Johnson; Nathan Hollingsworth; Gabriele Kociok-Köhn; Kieran C. Molloy

doi:10.1021/ic801591d

Organozinc aminoalcoholates: Synthesis, structure, and materials chemistry

Andrew L. Johnson, Nathan Hollingsworth, Gabriele Kociok-Köhn, Kieran C. Molloy

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38 Citations (SciVal)

Abstract

A series of novel organozinc aminoalcoholates have been synthesized by the reaction of the amino alcohols HOCH_x(CH₂NMe ₂)_3-x (x = 2, Hdmae; 1, Hbdmap; 0, Htdmap) with R ₂Zn (R = Me, Et). The 1:1 reaction with Hdmae leads to the tetramers [RZn(dmae)]₄ [R = Me (1), Et (2)], while with Htdmap, dimeric [RZn(tdmap)]₂ [R = Me (7), Et (8)] are produced. Reaction with Hbdmap only yields [MeZn(bdmap)]_n (3), an oil which mass spectral data suggests contains a mixture of Zn₂ - Zn₇ species, when a 2-fold excess of ligand is used. Crystals of dimeric [Zn(bdmap) ₂·Hbdmap]₂ (4) deposit from this oil on prolonged standing. Reaction of Et₂Zn with Hbdmap (1:1) affords [EtZn(bdmap)]_n (5), also an oil made up of Zn₃ and Zn ₄ clusters on the basis of mass spectral evidence. Crystals of EtZn₃(bdmap)₅ (6) are formed within the oil that is 5 on standing. [MeZn(tdmap)]₂ (7) has been used as a single-source precursor for hexagonal ZnO films under low pressure chemical vapor deposition (LPCVD) conditions and a substrate temperature of 500°C.

Original language	English
Pages (from-to)	12040-12048
Number of pages	9
Journal	Inorganic Chemistry
Volume	47
Issue number	24
Early online date	13 Nov 2008
DOIs	https://doi.org/10.1021/ic801591d
Publication status	Published - 15 Dec 2008

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Organozinc aminoalcoholates: Synthesis, structure, and materials chemistry",

abstract = "A series of novel organozinc aminoalcoholates have been synthesized by the reaction of the amino alcohols HOCHx(CH2NMe 2)3-x (x = 2, Hdmae; 1, Hbdmap; 0, Htdmap) with R 2Zn (R = Me, Et). The 1:1 reaction with Hdmae leads to the tetramers [RZn(dmae)]4 [R = Me (1), Et (2)], while with Htdmap, dimeric [RZn(tdmap)]2 [R = Me (7), Et (8)] are produced. Reaction with Hbdmap only yields [MeZn(bdmap)]n (3), an oil which mass spectral data suggests contains a mixture of Zn2 - Zn7 species, when a 2-fold excess of ligand is used. Crystals of dimeric [Zn(bdmap) 2·Hbdmap]2 (4) deposit from this oil on prolonged standing. Reaction of Et2Zn with Hbdmap (1:1) affords [EtZn(bdmap)]n (5), also an oil made up of Zn3 and Zn 4 clusters on the basis of mass spectral evidence. Crystals of EtZn3(bdmap)5 (6) are formed within the oil that is 5 on standing. [MeZn(tdmap)]2 (7) has been used as a single-source precursor for hexagonal ZnO films under low pressure chemical vapor deposition (LPCVD) conditions and a substrate temperature of 500°C.",

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N2 - A series of novel organozinc aminoalcoholates have been synthesized by the reaction of the amino alcohols HOCHx(CH2NMe 2)3-x (x = 2, Hdmae; 1, Hbdmap; 0, Htdmap) with R 2Zn (R = Me, Et). The 1:1 reaction with Hdmae leads to the tetramers [RZn(dmae)]4 [R = Me (1), Et (2)], while with Htdmap, dimeric [RZn(tdmap)]2 [R = Me (7), Et (8)] are produced. Reaction with Hbdmap only yields [MeZn(bdmap)]n (3), an oil which mass spectral data suggests contains a mixture of Zn2 - Zn7 species, when a 2-fold excess of ligand is used. Crystals of dimeric [Zn(bdmap) 2·Hbdmap]2 (4) deposit from this oil on prolonged standing. Reaction of Et2Zn with Hbdmap (1:1) affords [EtZn(bdmap)]n (5), also an oil made up of Zn3 and Zn 4 clusters on the basis of mass spectral evidence. Crystals of EtZn3(bdmap)5 (6) are formed within the oil that is 5 on standing. [MeZn(tdmap)]2 (7) has been used as a single-source precursor for hexagonal ZnO films under low pressure chemical vapor deposition (LPCVD) conditions and a substrate temperature of 500°C.

AB - A series of novel organozinc aminoalcoholates have been synthesized by the reaction of the amino alcohols HOCHx(CH2NMe 2)3-x (x = 2, Hdmae; 1, Hbdmap; 0, Htdmap) with R 2Zn (R = Me, Et). The 1:1 reaction with Hdmae leads to the tetramers [RZn(dmae)]4 [R = Me (1), Et (2)], while with Htdmap, dimeric [RZn(tdmap)]2 [R = Me (7), Et (8)] are produced. Reaction with Hbdmap only yields [MeZn(bdmap)]n (3), an oil which mass spectral data suggests contains a mixture of Zn2 - Zn7 species, when a 2-fold excess of ligand is used. Crystals of dimeric [Zn(bdmap) 2·Hbdmap]2 (4) deposit from this oil on prolonged standing. Reaction of Et2Zn with Hbdmap (1:1) affords [EtZn(bdmap)]n (5), also an oil made up of Zn3 and Zn 4 clusters on the basis of mass spectral evidence. Crystals of EtZn3(bdmap)5 (6) are formed within the oil that is 5 on standing. [MeZn(tdmap)]2 (7) has been used as a single-source precursor for hexagonal ZnO films under low pressure chemical vapor deposition (LPCVD) conditions and a substrate temperature of 500°C.

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Organozinc aminoalcoholates: Synthesis, structure, and materials chemistry

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