Two mixed metal complexes [Cr2Fe(μ3-O) (μ-O2CC2H5)6Py3]Cl (A)and [CrFe2 (μ3-O) (μ-O2CC2H5 )6Py3] Cl (B) have been prepared in non-aqueous sol-vents. Crystal (A) is monoclinic, space group C2/c, with a= 13. 782(3),...
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Two mixed metal complexes [Cr2Fe(μ3-O) (μ-O2CC2H5)6Py3]Cl (A)and [CrFe2 (μ3-O) (μ-O2CC2H5 )6Py3] Cl (B) have been prepared in non-aqueous sol-vents. Crystal (A) is monoclinic, space group C2/c, with a= 13. 782(3), b= 18. 381(4), c= 16. 643(2) A, β= 92. 84(5)°, V=4211. 1 (4) A3, Z=4, Mr= 887. 03, Dc= 1. 40 g/cm3, μ= 5. 0 cm-1, F(000) = 1836 and R(Rw) = 0. 057(0. 062) for 2134 unique reflections with I> 3δ(I). Crystal (B) is also monoclinic, space group C2/c ,with a= 13. 793(4), b= 18. 401 (6), c= 16. 657(5) A’, β= 93. 18(3)°, V=4221. 3(5) A3, Z= 4, Mr=890. 88, Dc= 1. 40 g/cm3, μ= 10. 5 cm-1, F(000) = 1844 and R(Rw) = 0. 067 (0. 069) for 2131 unique reflections with I>3δ(I). Both (A) and (B)have been characterized by IR spectra. Besides, the relations between the structuresand IR are discussed.
The title compound has been synthesized by reaction of (NH4)3VS4,CuCl, and PBu3 in CH2Cl2 and its structure was determined by single crystal X-raydiffraction. Crystallographic data: C72 H162 Cu6O2P6S8V2, Mr= 1985. 57,...
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The title compound has been synthesized by reaction of (NH4)3VS4,CuCl, and PBu3 in CH2Cl2 and its structure was determined by single crystal X-raydiffraction. Crystallographic data: C72 H162 Cu6O2P6S8V2, Mr= 1985. 57, monoclinicspace group C2/c, a= 17. 864(3), b= 25. 946(8), c= 24.071 (7),β= 112. 79(2)°,V = 10285. 9, Z= 4, Dc= 1. 28 g/cm3, F(000) = 4192, μ(MoKa) = 16. 7 cm-1,the final R=0.065 and Rw =0.074 for 4051 unique reflections with I> 3σ(I). Thestructure can be described as a metal-sulfur dodecahedral cage fused by two incompletecubane-like VS3Cu3 units connected by Cu - S bonds. The Cu - S bonds within theasymmetric VS3Cu3 unit are slightly shorter than those linking the two centrosymmetrically related VS3Cu3 units. The six copper and two vanadium atoms display asomewhat distorted cubane array with a μ4-S atom on each face of the metal cubane.
Reaction of hydrated ytterbium nitrate and copper nitrate with diglycolic acid at pH= 7 produced a new Yb-Cu mixed metal complex, Yb2Cu3L6. 6H2O(L= O(CH2COO)2). Complex Yb2Cu3O36C2H36 (Mr= 1437. 23) crystallized in he...
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Reaction of hydrated ytterbium nitrate and copper nitrate with diglycolic acid at pH= 7 produced a new Yb-Cu mixed metal complex, Yb2Cu3L6. 6H2O(L= O(CH2COO)2). Complex Yb2Cu3O36C2H36 (Mr= 1437. 23) crystallized in hexagonalP6/mcc (No. 192) with cell parameters of a= 14. 344 (3), c= 15. 470(7) A,V= 2757(2) A 3; Z= 2; F(000) = 1390; Dcalc.= 1- 731 g/cm3 μ(MoKa) =45. 8 cm-1. The final agreernent factors are R= 0. 077 and Rw = 0.089 for 867 observed reflections with I>3δ(I). It has been characterized by elemental analysis, IR spectrum, magnetic measurement and X-ray crystallography. In the complex, the Yb3+ ion is 9-coordinated tothree ether oxygen and six carboxylate oxygen atoms from three ligands, the copper ionis coordinated to four oxygen atoms from four carboxylate groups of four ligands andtwo water molecules. The Yb3+ ions and the Cu2+ ions are connected by the carboxylate groups of the ligands, thus resulting in the formation of the complicated networkstructure.
The title complex [NH4]n [WAgS4]n crystallizes in the tetragonalspace group I4 with crystallographic parameters: a = b = 7. 994 (2 ), c = 5. 855 (2 ):A,V = 373. g(2) A3, Z=2, Dc= 3. 89 g/cm3, F(000) = 392, μ= 19. 27 ...
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The title complex [NH4]n [WAgS4]n crystallizes in the tetragonalspace group I4 with crystallographic parameters: a = b = 7. 994 (2 ), c = 5. 855 (2 ):A,V = 373. g(2) A3, Z=2, Dc= 3. 89 g/cm3, F(000) = 392, μ= 19. 27 mm-l , A(MoKα) = 0. 71069, Mr = 438. 01, and the convergence factors R = 0. 045, Rw =0. 055 for 341 observed reflections (I>3σ(I)). The anion structure can be viewed as apolymeric single chain consisting of unlimited extended rhombic fragruents of -AgS2W-which are alternately perpendicular to each other. Additionally, influence of di- and tri-valent complex cations on the assembIy of WS2-4 and Ag+ is briefly discussed.
The solid state reaction of MoCl3. 3H2O with 8--hydroxylquinine givesthe title compound MoO2, (C9H6NO)2. The crystallographic data for C18,H12,***=monoclinic, space group C2/c, a= 13. 357(4), b= 9. 434(2), c= 13. 540(...
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The solid state reaction of MoCl3. 3H2O with 8--hydroxylquinine givesthe title compound MoO2, (C9H6NO)2. The crystallographic data for C18,H12,***=monoclinic, space group C2/c, a= 13. 357(4), b= 9. 434(2), c= 13. 540(5) A, β=109. 39(6)°, V= 1609 (2) A3, Z= 4, M.= 416. 24, D.= 1. 72 g/cm3, μ(MoKa) 8. 19 cm-l, F(000) = 832, R= 0. 049 and Rw= 0. 058 for 1118 observed *** Mo atom is,coordinated by two N atoms and two O atoms from two 8-hydroxylquinine and other two terminal O atoms, forming octahedral coordination geometry.
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