Tang, Yun-Zhi; Tan, Yu-Hui; Chen, Shao-Hu; Chao, Yan-Wen; Wang, Ping published the artcile< Synthesis, characterization and crystal structures of two alkaline-earth metal complexes of olsalazine>, Reference of 6054-98-4, the main research area is olsalazine magnesium calcium aqua polymer complex preparation structure; crystal structure magnesium calcium olsalazine aqua polymer complex.
Two one-dimensional linear coordination polymers, [Mg(L)·4(H2O)] (1, H2L = olsalazine) and [Ca(L)·4(H2O)] (2) were obtained from self-assembly of CaCl2 or MgSO4 with olsalazine and their structures determined by single crystal x-ray diffraction. Both complexes are one-dimensional polymers, with crystal data for complex 1: P2(1)/c, a 9.5224(18), b 11.309(2), c 16.211(3) Å, β 106.648(3)°, V 1672.6(6) Å3, Z = 4, space group R1 = 0.0695, wR2 = 0.2183, for complex 2: space group P4(3)2(1)2, a 10.4006(2), b 10.4006(2), c 32.0746(10) Å, V 3469.59(14) Å3, Z = 8, R1 = 0.0332, wR2 = 0.1015. In the complexes, Mg and Ca adopt totally different coordination modes. Alk.-earth Mg has a six-coordinate octahedral geometry, however, in 2, the local coordination geometry around calcium atom can be best described as a slightly distorted pentagonal bipyramid crystallizing in a homo-chiral space group. Olsalazine in both compounds also adopts dissimilar coordination modes.
Journal of Coordination Chemistry published new progress about Crystal structure. 6054-98-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C14H8N2Na2O6, Reference of 6054-98-4.
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