Synthesis and structure of Cu_5(BTA)_6(TTA)_4·5DMF, a copper-nitrogen cluster containing η~3-benzotr

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The title cluster compound-Cu5(BTA)6(TT-A)4·5DMF was prepared using thenyltrifluoroacetone and benzotriazolate ligands. The crystal structure indicates that a tetrahedral array of Cu(l), Cu(2), Cu(3) and Cu(4) ions surrounding a central Cu(5) ion are held together by bridging tridentate BTA- and terminated by TTA- bond cap. The three nitrogen atoms of a BTA- bond three different copper ions to form a η3-benzotriazolate. The central Cu ion has a distorted octahedral structure and the surrounding Cu ions are 5 coordinated forming distorted tetragonal structures. The distances between the surrounding Cu(Ⅱ) ions and the central Cu(Ⅱ) ion are in the range of 0.3561-0.3755 nm and those between the surrounding Cu(Ⅱ) ions are in the range of 0.5785-0.6301nm. The title cluster compound-Cu5 (BTA) 6 (TT-A) 4.5DMF was prepared using thenyltrifluoroacetone and benzotriazolate ligands. The crystal structure indicates that a tetrahedral array of Cu (1), Cu Cu (4) ions surrounding a central Cu (5) ion are held together by bridging tridentate BTA- and terminated by TTA- bond cap. The three nitrogen atoms of a BTA-bond three different copper ions to form a η3-benzotriazolate. Central Cu ion has a distorted octahedral structure and the surrounding Cu ions are 5 coordinated forming distorted tetragonal structures. The distances between the surrounding Cu (II) ions and the central Cu (II) ions are in the range of 0.3561-0.3755 nm and those between the surrounding Cu (Ⅱ) ions are in the range of 0.5785-0.6301nm.
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