The new type of [Zr-6(mu(3)-O)(4)(mu(3)-OH)(4)] cluster core: Crystal structure and spectral characterization of [Zr6O4(OH)(4)(OOCR)(12)] (R = Bu-t, C(CH3)(2)Et)

Piszczek P; Radtke A; Grodzicki A; Wojtczak A; Chojnacki J

首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >The new type of [Zr-6(mu(3)-O)(4)(mu(3)-OH)(4)] cluster core: Crystal structure and spectral characterization of [Zr6O4(OH)(4)(OOCR)(12)] (R = Bu-t, C(CH3)(2)Et)

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The new type of [Zr-6(mu(3)-O)(4)(mu(3)-OH)(4)] cluster core: Crystal structure and spectral characterization of [Zr6O4(OH)(4)(OOCR)(12)] (R = Bu-t, C(CH3)(2)Et)

机译：新型[Zr-6（mu（3）-O）（4）（mu（3）-OH）（4）团簇核：[Zr6O4（OH）（4）（OOCR）的晶体结构和光谱表征）（12）]（R = Bu-t，C（CH3）（2）Et）

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Hexanuclear Zr(IV) oxo carboxylate derivatives of the general formula [Zr6O4(OH)(4)(OOCR')(12)] (R' = Bu' (1), C(CH3)(2)Et (2)) were synthesized from Zr(OR)(4) (R = Pr', C(CH3)(2)Et) and appropriate organic acids (HOOCR', R'= Bu, C(CH3)(2)Et) in a molar ratio 1:2. The crystal structures of 1 and 2 were solved in the centrosymmetric R3 space group. Zirconium atoms form hexanuclear Zr(IV) clusters, linked by 4:4 system of mu(3)-oxo/hydoxo bridges and stabilized by syn-syn carboxylate groups. Each of the metal ions is surrounded by eight oxygen atoms derived from four mu(3)-O; OXO/hydroxo bridges, and four mu-O; carboxylate ones. Analysis of crystallographic and spectroscopic data suggests that four protons migrate between eight oxide bridges of the [Zr6O4(OH)(4)(OOCR')(12)] cluster. Thermogravimetric and temperature variable (VT IR) studies have been carried out in order to determine the thermal behaviors of 1 and 2. (c) 2006 Elsevier Ltd. All rights reserved.

机译：通式[Zr6O4（OH）（4）（OOCR'）（12）]的六核Zr（IV）羰基羧酸酯衍生物（R'= Bu'（1），C（CH3）（2）Et（2））由Zr（OR）（4）（R = Pr'，C（CH3）（2）Et）和合适的有机酸（HOOCR'，R'= Bu，C（CH3）（2）Et）合成比例1：2。 1和2的晶体结构解析为中心对称的R3空间群。锆原子形成六核Zr（IV）簇，由mu（3）-oxo / hydoxo桥的4：4系统连接，并由syn-syn羧酸盐基团稳定。每个金属离子被八个mu（3）-O衍生的八个氧原子包围; OXO /羟基桥和四个mu-O;羧酸盐。晶体学和光谱数据分析表明，四个质子在[Zr6O4（OH）（4）（OOCR'）（12）]簇的八个氧化桥之间迁移。为了确定1和2的热行为，已经进行了热重和温度变量（VT IR）研究。（c）2006 Elsevier Ltd.保留所有权利。

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |2007年第3期|共7页
作者
Piszczek P; Radtke A; Grodzicki A; Wojtczak A; Chojnacki J;
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正文语种 eng
中图分类化学;
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zirconium(IV) complexes; oxo/hydroxo carboxylates; crystal structure; IR; NMR; SUBSTITUTED OXOZIRCONIUM CLUSTERS; TEMPERATURE-DEPENDENCE; THIN-FILMS; CARBOXYLATE; COMPLEXES; METHACRYLATE; SCATTERING; HYDROXIDE;

机译：锆（IV）配合物;羟基/羟基羧酸盐;晶体结构;红外光谱;核磁共振;取代的氧化锆簇合物;温度依赖性;薄膜;羧酸盐;化合物;甲基丙烯酸酯;散射;氢氧化物;

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The new type of [Zr-6(mu(3)-O)(4)(mu(3)-OH)(4)] cluster core: Crystal structure and spectral characterization of [Zr6O4(OH)(4)(OOCR)(12)] (R = Bu-t, C(CH3)(2)Et)

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