• S V Ganesan

      Articles written in Journal of Chemical Sciences

    • A lanthanum pyromellitate coordination polymer with three-dimensional structure

      S V Ganesan Srinivasan Natarajan

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      A new three-dimensional metal-organic coordination polymer, [La2(H2O)2(H2BTEC)(BTEC)], 1, was hydrothermally synthesized and characterized by single crystal X-ray diffraction. The three-dimensional framework is built up from La2O16 dimers connected by carboxylate anions. The polymer exhibits strong photoluminescence at room temperature with the main emission band at 390 nm (λex = 338 nm). Crystal data: triclinic, space group P(−1),a = 6.4486(3),b = 9.4525(5),c = 9.6238(5) Å, α= 88.24(1), β = 74.67(2), γ= 76.76(1)°,V = 550.45(5)

    • Hydrothermal synthesis and structure of [(C4N2H12)3][P2Mo5O23]·H2O and [(C3N2H12)3][P2Mo5O23]·4H2O

      S V Ganesan Srinivasan Natarajan

      More Details Abstract Fulltext PDF

      Two new compounds, [(C4N2H12)3][P2Mo5O23]·H2O,I, and [(C3N2H12)3][P2Mo5O23]4H2O,II, have been prepared employing hydrothermal methods in the presence of aliphatic organic amine molecules. Both the compounds possess the same polyoxoanion, pentamolybdatobisphosphate, (P2Mo5O23)6-. The anions consist of a ring of five MoO6 distorted octahedra with four edge connections and one corner connection. The phosphate groups cap the pentamolybdate ring anion on either side. The anion is stabilized by strong hydrogen bonds involving the hydrogen atoms of the amine molecules and the oxygen atoms of the polyoxoanion and water molecules. Crystal data:I, monoclinic, space group = P21/n (no. 14), mol. wt. = 1192.1,a = 9.4180(1),b = 18.1972(3),c = 19.4509(1) å, Β = 103.722(1)‡,V = 3238.37(7) å3, Z = 4;II, triclinic, space group = P1 (no. 2), mol. wt. = 1210.1,a 9.5617(9),b = 13.3393(12),c = 13.7637(12) å, α = 88.735(1), Β = 75.68(1), γ = 87.484(2)‡,V = 1699.2(3) å3.

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