@article {49993, title = {Synthesis and crystal structure of [Sr(urea)(NO3)2]n}, journal = {Acta crystallographica Section E, Crystallographic communications}, volume = {81}, year = {2025}, month = {FEB}, pages = {96-98.}, type = {Article}, abstract = {

The crystal structure of poly[di-μ2-nitrato-μ2-urea-strontium(II)], [Sr(NO3)2(CH4N2O)]\ n\ , was determined using single-crystal X-ray diffraction. Crystallizing in the ortho-rhom-bic space group\ Aba2, the asymmetric unit consists of an SrII\ cation, two nitrate anions, and two half urea mol-ecules. The SrII\ cation adopts a distorted deca-hedral geometry coordinated by ten oxygen atoms, with Sr-O bond lengths ranging from 2.573 (3) to 2.847 (5) {\r A}. The nitrate anions act as bidentate ligands, displaying both terminal and bridging coordination modes. The structure features a robust coordination network supported by hydrogen bonding. These results provide insight into the coord-ination behaviour of SrII\ with nitrate and urea ligands, contributing to the understanding of supra-molecular architectures in metal-organic frameworks (MOFs).

}, doi = {10.1107/S2056989024012386}, author = {Bektursinova, Aysanem and Djumanazarova, Zulfiya and Uzakbergenova, Zamira and Ashurov, Jamshid and Khan, Akram A. and Kadirova, Shakhnoza and Torambetov, Batirbay} } @article {49981, title = {Synthesis, crystal structure and Hirshfeld surface analysis of bis-[2-amino-5-(ethyl-sulfan-yl)-1,3,4-thia-diazol-3-ium] bis-(perchlorato-κO)bis-(picolinato-κ2N,O)copper(II)}, journal = {Acta Crystallographica Section E, Crystallographic Communications}, volume = {81}, year = {2025}, month = {JUN}, pages = {613{\textendash}617}, type = {Article}, doi = {10.1107/S2056989025004992}, author = {Khojabaeva, Gulnaz and Torambetov, Batirbay and Gonnade, Rajesh G. and Uzakbergenova, Zamira and Rasulov, Abdusamat and Kadirova, Shakhnoza} }