POLYMERIC COMPLEXES OF COPPER(II) AZIDE AND 2,5-DIMETHYLPYRIDINE WITHOUT AND WITH SOLVENT MOLECULES - SYNTHESIS, SPECTRAL AND STRUCTURAL CHARACTERIZATION OF [CU(2,5-DIMETHYLPYRIDINE)(N-3)(2)](N) AND [CU(2,5-DIMETHYLPYRIDINE)(N-3)(2)(H2N-CHO)](2)

Goher MAS.; Alsalem NA.; Mautner FA.

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POLYMERIC COMPLEXES OF COPPER(II) AZIDE AND 2,5-DIMETHYLPYRIDINE WITHOUT AND WITH SOLVENT MOLECULES - SYNTHESIS, SPECTRAL AND STRUCTURAL CHARACTERIZATION OF [CU(2,5-DIMETHYLPYRIDINE)(N-3)(2)](N) AND [CU(2,5-DIMETHYLPYRIDINE)(N-3)(2)(H2N-CHO)](2)

机译：无溶剂和有溶剂的叠氮化铜和2,5-二甲基吡啶的聚合物络合物-[CU（2,5-二甲基吡啶）（N-3）（2）]（N）和[铜（2,5-二甲基吡啶）（N-3）（2）（H2N-CHO）] [2）

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Catina di-mu(1,1)-azido[di-mu(1,1)-azidobis(2,5-dimethylpyridine(dicopper(II)] (1) and di-mu(1,1)-azidobis[azido(2,5-dimethylpyridine) (formamide)]dicopper(II) (2) were synthesized and characterized by spectroscopic and crystallographic methods. In the triclinic complex 1 the copper(II) centres are penta-coordinated by four nitrogen atoms from the azido ligands [Cu-N distances = 1.980(3)-2.249(4) Angstrom] and a fifth nitrogen from the organic molecule at a Cu-N bond length of 2.038(4) Angstrom. Both azido ligands function as mu(1,1) bridges to form chains of polyhedra along the crystallographic a axis. The dimeric molecule 2, which possesses a crystallographic inversion centre, contains both terminal and mu(1,1) bridging azido ligands. Each copper(II) atom is further coordinated by a 2,5-dimethylpyridine molecule [Cu-N = 1.998(4) Angstrom] and a formamide molecule via its carbonyl oxygen atom [Cu-O = 2.356(4) Angstrom] to give a distorted square pyramid. The IR absorption spectra reveal asymmetric azido ligands in both complexes, O-bonded formamide and hydrogen bonds as well, in 2. The solid and solution electronic spectra of both complexes exhibit more than one strong N-3(-) --> Cu-II charge-transfer transition band. The room-temperature EPR spectra of powdered samples and DMF solutions were recorded and discussed. (C) 1997 Elsevier Science Ltd. [References: 34]

机译：卡蒂纳（Catina）di-mu（1,1）-叠氮基[di-mu（1,1）-叠氮基双（2,5-二甲基吡啶（二铜（II））]（1）和di-mu（1,1）-叠氮基双[叠氮基合成（2,5-二甲基吡啶）（甲酰胺）]二铜（II），并通过光谱和晶体学方法对其进行表征，在三斜配合物1中，铜（II）中心被叠氮基中的四个氮原子五配位配体[Cu-N距离= 1.980（3）-2.249（4）埃]和来自有机分子的第五个氮，铜-N键长为2.038（4）埃。两个叠氮基配体均起mu（1,1 ）沿结晶a轴桥接形成多面体链，二聚体分子2具有结晶反转中心，既包含末端桥键，也包含mu（1,1）桥叠氮基配体，每个铜（II）原子进一步由a配位2,5-二甲基吡啶分子[Cu-N = 1.998（4）埃]和甲酰胺分子通过其羰基氧原子[Cu-O = 2.356（4）埃]形成扭曲的方形金字塔，红外吸收光谱显示两种配合物中均具有不对称叠氮基配体，以及O键合的甲酰胺和氢键，在2中。两种配合物的固体和溶液电子光谱均显示出不止一种强N-3（-）-> Cu-II电荷转移过渡带。记录并讨论了粉末状样品和DMF溶液的室温EPR光谱。（C）1997 Elsevier Science Ltd. [参考：34]

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |1997年第13期|共10页
作者
Goher MAS.; Alsalem NA.; Mautner FA.;
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正文语种 eng
中图分类化学;无机化学;
关键词
Copper(ii) azide; 2; 5-dimethylpyridine; Complexes; Spectra; Crystal structure; Metal pseudohalide complexes; Crystal-structure; 3-picoline;

机译：叠氮化铜;2;5-二甲基吡啶;配合物;光谱;晶体结构;金属拟卤化物配合物;晶体结构;3-甲基吡啶;

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机译：无溶剂和有溶剂的叠氮化铜和2,5-二甲基吡啶的聚合物络合物-[CU（2,5-二甲基吡啶）（N-3）（2）]（N）和[铜（2,5-二甲基吡啶）（N-3）（2）（H2N-CHO）] [2）
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POLYMERIC COMPLEXES OF COPPER(II) AZIDE AND 2,5-DIMETHYLPYRIDINE WITHOUT AND WITH SOLVENT MOLECULES - SYNTHESIS, SPECTRAL AND STRUCTURAL CHARACTERIZATION OF [CU(2,5-DIMETHYLPYRIDINE)(N-3)(2)](N) AND [CU(2,5-DIMETHYLPYRIDINE)(N-3)(2)(H2N-CHO)](2)

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