Showing papers by "Bryan M. Gatehouse published in 1976"
TL;DR: In this article, the crystal structures of Ag2Mo2O7(I) and Ag2W2O 7(II) have been determined by single-crystal X-ray analysis.
Abstract: The crystal structures of Ag2Mo2O7(I) and Ag2W2O7(II) have been determined by single-crystal X-ray analysis Both compounds crystallize in space group P, Z= 2, with for (I): a= 6095(3), b= 7501(3), c= 7681(3)A, α= 1104(1), β= 933(1), γ= 1135(1)°; and for (II): a = 6033(3), b= 7051 (3), c= 7735(3)A, α= 738(1), β= 922(1), γ= 1047(1)° The structures were determined from diffractometer data by heavy-atom methods and refined to R 0045 [(I), 1 208 observed reflections] and 0047 [(II), 1 364 observed reflections] The structures consist of infinite chains formed by blocks of four edge-shared octahedra joined by edge-sharing in (I), and by corner-sharing in (II), with the silver ions situated between the chains
37 citations
TL;DR: In this paper, the Patterson and Fourier method was used to solve the problem of triclinic trichloric triconycliques and the structure was refined by least-squares techniques to R 0.061 for 1 325 reflections collected by diffractometer.
Abstract: Crystals of the title compound are triclinic, with a= 10.299(5), b= 9.289(5), c= 6.841 (4)A, α= 88.98(4), β= 105.57(5), γ= 84.81 (4)°, Z= 2, and space group P. The structure was solved by conventional Patterson and Fourier methods and refined by least-squares techniques to R 0.061 for 1 325 reflections collected by diffractometer. The complex has a planar C,Hg,N,N′ group with unsymmetrically chelated 2,2′-bipyridyl and three-co-ordinate mercury: Hg–C 2.07(5), Hg–N 2.24(3), and Hg–N′2.43(3)A; C–Hg–N 164(1),C–Hg–N′126(1), and N-Hg-N′(chelate angle) 69(1)°. The nitrate ion is regular and unto-ordinated.
10 citations
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TL;DR: In this paper, the crystal structures of Ag2Mo2O7(I) and Ag2W2O 7(II) have been determined by single-crystal X-ray analysis.
Abstract: The crystal structures of Ag2Mo2O7(I) and Ag2W2O7(II) have been determined by single-crystal X-ray analysis. Both compounds crystallize in space group P, Z= 2, with for (I): a= 6.095(3), b= 7.501(3), c= 7.681(3)A, α= 110.4(1), β= 93.3(1), γ= 113.5(1)°; and for (II): a = 6.033(3), b= 7.051 (3), c= 7.735(3)A, α= 73.8(1), β= 92.2(1), γ= 104.7(1)°. The structures were determined from diffractometer data by heavy-atom methods and refined to R 0.045 [(I), 1 208 observed reflections] and 0.047 [(II), 1 364 observed reflections]. The structures consist of infinite chains formed by blocks of four edge-shared octahedra joined by edge-sharing in (I), and by corner-sharing in (II), with the silver ions situated between the chains.