Crystal Structure of Methyl[4-(2-iminophenolate)-pentan-2-onato]gallium

Shen, Yingzhong; Li, Yi‐Zhi; Han, Jianlin; He, Cheng; Huang, Xiaoying; Pan, Yi

doi:10.2116/analscix.20.x55

Cited by 3 publications

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“…Coordination of H 2 L to a metal ion requires the loss of two H atoms to form the tridentate dianion 2-[(2E,3Z)-4-oxidopent-3-en-2-ylideneamino]phenolate, L. Examples of structurally characterized complexes of L include the centrosymmetric tetranuclear Cu II cluster Cu 4 L 4 (Barclay & Hoskins, 1965), the dinuclear organometallic complex Ga 2 (Me) 2 L 2 (Shen et al, 2004), the unusual square-pyramidal Si IV complexes Si(NCO) 2 L 2 and Si(NCS) 2 L 2 (Seiler et al, 2005), a six-coordinate Si IV complex, SiL 2 (Seiler et al, 2005), a centrosymmetric dinuclear Cu II cluster, Cu 2 L 2 0 (utilizing the 4-chloro analogue of L; Tahir et al, 1996), and the mixedligand complexes SiLX, where X is the dianion of 2-hydroxybenzoic acid, (S)-lactic acid or 2-hydroxyethanoic acid (Seiler et al, 2007). While these examples illustrate some of the coordination chemistry possible with H 2 L, further development and application of this type of ligand in both coordination and supramolecular chemistry are warranted.…”

Section: Commentmentioning

confidence: 99%

A novel trinuclear zinc(II) cluster with a tetrahedral ZnO₄core

Munro¹,

Gillham²,

Akerman³

2009

Acta Crystallogr C

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The reaction of 0.67 molar equivalents of the O,N,O'-tridentate zwitterionic Schiff base (2Z,4E)-4-[(2-hydroxyphenyl)iminio]pent-2-en-2-olate (H2L) with one equivalent of zinc(II) acetate in methanol affords a novel trinuclear Zn(II) cluster, di-mu-acetato-1:2kappa2O:O';2:3kappa2O:O'-dimethanol-1kappaO,3kappaO-bis{mu-2-[(2E,3Z)-4-oxidopent-3-en-2-ylideneamino]phenolato}-1:2kappa4O2,N,O4:O4;2:3kappa4O4:O2,N,O4-trizinc(II), [Zn3(C11H11NO2)2(C2H3O2)2(CH4O)2], (I), in which two bridging acetate ligands link the terminal square-based pyramidal Zn(II) ions to the approximately tetrahedral Zn(II) ion at the core of the cluster. The ZnO(4) coordination group of the central Zn(II) ion is established by two bridging phenolate and two bridging acetate O atoms. The remaining four coordination sites of each terminal Zn(II) ion are occupied by methanol and deprotonated H2L. Furthermore, the Zn-bound methanol hydroxyl groups are involved in complementary hydrogen bonding with the Zn-bound enolate O atom of a neighbouring molecule, about an inversion centre in each case. The structure of (I) is therefore best described as an extended one-dimensional hydrogen-bonded chain of trinuclear Zn(II) clusters.

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Section: Commentmentioning

confidence: 99%

A novel trinuclear zinc(II) cluster with a tetrahedral ZnO₄core

Munro¹,

Gillham²,

Akerman³

2009

Acta Crystallogr C

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“…3 The Fig. 2 Molecular structure of 1 in 50% probability displacement ellipsoids and with the numbering scheme of the non-hydrogen atoms.…”

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Crystal Structure of Dimethyl[5-tert-butyl-2-(6-methyl-1H-benzotriazol-2-yl)-phenolato]gallium

2006

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The chemistry of organogallium complexes that contain either group-15 or group-16 elements has been under investigation during the last few decades due to their rich structural chemistry and potential application as precursors of semiconductor materials 1 as well as emitting materials in OLED. 2 Herein We reported on the title compound, dimethyl[5-tert-butyl-2-(6-methyl-1H-benzotriazol-2-yl)phenolato]gallium (1), which was obtained from the reaction of trimethylgallium with 5-tertbutyl-2-(6-methyl-1H-benzotriazol-2-yl)phenol.The molecular structure of 1 is shown in Scheme 1; single crystals suitable for X-ray analysis were obtained by slow evaporation of a benzene solution of 1 at room temperature. Crystallographic data were collected using an AFC5R (RIGAKU) diffractometer with Mo Kα (λ = 0.71073 Å) radiation from a graphite monochromator. Structure refinements were performed using the full-matrix least-squares method on F 2 . Parameters were refined using anisotropic temperature factors, with the exception of those for the hydrogen atom. The hydrogen atoms were introduced at calculated positions. The crystal and experimental data are presented in Table 1

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