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Trans-Bis(1,1,1,5,5,5-hexa-fluoro-pentane-2,4-dionato-κO,O')bis-(4-methyl-1,2,3-selenadiazole-κN)copper(II).

ABSTRACT: In the title compound, [Cu(C(5)HF(6)O(2))(2)(C(3)H(4)N(2)Se)(2)], the Cu(II) atom (site symmetry ) is coordinated by two O,O'-bidentate 1,1,1,5,5,5-hexa-fluoro-2,4-penta-nedione (hp) ligands and two 4-methyl-1,2,3-selenadiazole mol-ecules, resulting in a slightly distorted trans-CuN(2)O(4) octa-hedral geometry in which the cis angles deviate by less than 3° from 90°. The selenadiazole plane is canted at 73.13 (17)° to the square plane defined by the penta-nedionate O atoms. The F atoms of one of the hp ligands are disordered over two sets of sites in a 0.66 (3):0.34 (3) ratio. There are no significant inter-molecular inter-actions in the crystal.

SUBMITTER: Boag NM

PROVIDER: S-EPMC2979973 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

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trans-Bis(1,1,1,5,5,5-hexa-fluoro-pentane-2,4-dionato-κO,O')bis-(4-methyl-1,2,3-selenadiazole-κN)copper(II).

Boag Neil M NM Jackson Andrew D AD Lickiss Paul D PD Pilkington Richard D RD Redhouse Alan D AD

Acta crystallographica. Section E, Structure reports online 20100130 Pt 2

In the title compound, [Cu(C(5)HF(6)O(2))(2)(C(3)H(4)N(2)Se)(2)], the Cu(II) atom (site symmetry ) is coordinated by two O,O'-bidentate 1,1,1,5,5,5-hexa-fluoro-2,4-penta-nedione (hp) ligands and two 4-methyl-1,2,3-selenadiazole mol-ecules, resulting in a slightly distorted trans-CuN(2)O(4) octa-hedral geometry in which the cis angles deviate by less than 3° from 90°. The selenadiazole plane is canted at 73.13 (17)° to the square plane defined by the penta-nedionate O atoms. The F atoms of one of ...[more]

PMID: 21579694

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Project description:The title compound is a co-crystal of the cis and trans isomers, namely cis-bis-[1,1,1,5,5,5-hexa-fluoro-pentane-2,4-dionato(1-)-κ(2)O,O']bis-(4-phenyl-pyridine N-oxide-κO)copper(II)-trans-bis-[1,1,1,5,5,5-hexa-fluoro-pentane-2,4-dionato(1-)-κ(2)O,O']bis(4-phenyl-pyridine N-oxide-κO)copper(II) (2/1), [Cu(C(5)HF(6)O(2))(2)(C(11)H(9)NO)(2)]. In both isomers, the coordination geometry of the Cu(2+) atom is octa-hedral, exhibiting typical Jahn-Teller distortion. The metal atom of the trans isomer is located on an inversion centre. In the cis isomer, the phenyl ring in one 4-phenyl-pyridine N-oxide ligand is disordered over two orientations in a 1:1 ratio. In the crystal, weak inter-molecular C-H⋯F and C-H⋯O contacts establish connections between the cis and trans isomers.

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Project description:In the title compound, [Co(C(5)H(7)O(2))(2)(C(12)H(8)N(2))], the Co(II) cation lies on a twofold rotation axis and is coordinated by four O atoms from two acetyl-acetonate (acac) ligands and two N atoms from a 1,10-phenanthroline (phen) ligand in a slightly distorted octa-hedral environment, with Co-O bond lengths of 2.0565 (11) and 2.0641 (11) Å and Co-N bond lengths of 2.1630 (12) Å. In the crystal, there are no significant hydrogen-bonding or π-π inter-actions.

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cis-Bis[2-(1,3-benzothia-zol-2-yl)-1-(4-fluoro-phen-yl)ethen-yl](pentane-2,4-dionato-κO,O')iridium(III).

Project description:In the title compound, [Ir(C(15)H(9)FNS)(2)(C(5)H(7)O(2))], the Ir atom is hexa-coordinated by three chelating ligands, with two cyclo-metalated 2-(1,3-benzothia-zol-2-yl)-1-(4-fluoro-phen-yl)ethenyl ligands showing N,C-bidentate coordination and an O,O'-bidenate pentane-2,4-dionate anion, thereby forming a distorted octa-hedral enviroment.

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