0000000001299430
AUTHOR
Subrata Das
Recognition of self-assembled water-nitrate cluster in a Co(III)-2,2′-bipyridine host: Synthesis, X-ray structure, DNA cleavage, molecular docking and anticancer activity
A mononuclear cobalt(III) complex [Co(bpy)2Cl2]NO3⋅2H2O (1) (bpy = 2,2′-bipyridine) has been synthesized and crystallographically characterized. Self-assembly of the lattice water molecules from rectangular tetrameric water cluster interacts with nitrate anion along the c-axis forming a six membered hexagonal water-nitrate cluster. It presents a new mode of association of water molecules with nitrate molecules which is not predicted theoretically or found experimentally. The molecule effectively cleaves bacterial genomic DNA and shows important cytotoxicity against human hepatocarcinoma cell (HepG2).
Two Polymorphic Forms of a Six-Coordinate Mononuclear Cobalt(II) Complex with Easy-Plane Anisotropy: Structural Features, Theoretical Calculations, and Field-Induced Slow Relaxation of the Magnetization.
A mononuclear cobalt(II) complex [Co(3,5-dnb)2(py)2(H2O)2] {3,5-Hdnb = 3,5-dinitrobenzoic acid; py = pyridine} was isolated in two polymorphs, in space groups C2/c (1) and P21/c (2). Single-crystal X-ray diffraction analyses reveal that 1 and 2 are not isostructural in spite of having equal formulas and ligand connectivity. In both structures, the Co(II) centers adopt octahedral {CoN2O4} geometries filled by pairs of mutually trans terminal 3,5-dnb, py, and water ligands. However, the structures of 1 and 2 disclose distinct packing patterns driven by strong intermolecular O-H···O hydrogen bonds, leading to their 0D→2D (1) or 0D→1D (2) extension. The resulting two-dimensional layers and one-…
CCDC 825244: Experimental Crystal Structure Determination
Related Article: SUBRATA DAS, ANANDAN RANJANI, LOGANATHAN GAYATHRI, SUBHASISH SAHA, JORGE PASAN, DHARUMADURAI DHANASEKARAN, MOHAMMAD ABDULKADER AKBARSHA, MILAN MAJI, BHASKAR BISWAS|2016|J.Chem.Sci.(Bangalore,India)|128|1755|doi:10.1007/s12039-016-1167-0
CCDC 1477729: Experimental Crystal Structure Determination
Related Article: Subhadip Roy, Itziar Oyarzabal, Julia Vallejo, Joan Cano, Enrique Colacio, Antonio Bauza, Antonio Frontera, Alexander M. Kirillov, Michael G. B. Drew, and Subrata Das|2016|Inorg.Chem.|55|8502|doi:10.1021/acs.inorgchem.6b01087
CCDC 1477730: Experimental Crystal Structure Determination
Related Article: Subhadip Roy, Itziar Oyarzabal, Julia Vallejo, Joan Cano, Enrique Colacio, Antonio Bauza, Antonio Frontera, Alexander M. Kirillov, Michael G. B. Drew, and Subrata Das|2016|Inorg.Chem.|55|8502|doi:10.1021/acs.inorgchem.6b01087