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Two cobalt coordination polymers with the same 2D structure have been hydrothermally synthesized based on two bifunctional ligands with tetrazole and phosphonate(phosphonic acid) groups,namely,diethyl 4-(2H-1,2,3,4-tetrazol-5-yl) benzylphosphonate(C_2H_5-L1) and 4-(2H-1,2,3,4-tetrazol-5-yl)benzylphosphonic acid(H_2L2). The structures of the two complexes are characterized by elemental analysis,IR,TGA and X-ray single-crystal/powder diffraction. The pink block crystals of complex [Co(L1)(H_2O)]·H_2O(1) belong to the monoclinic system,space group C2/m with a = 20.8390(11),b = 7.2695(3),c = 10.0156(6) ?,β = 109.773(7)o,V = 1427.80(13) ?~3,Z = 4,D_c = 1.680 mg/cm~(-3),M_r = 361.16,F(000) = 740,R = 0.0316 and wR = 0.0826 for 1702 observed reflections(I > 2σ(I)). The purple block crystals of complex [Co(L2)(H_2O)]·2H_2O(2) also belong to the monoclinic system,space group C2/c with a = 25.5382(16),b = 7.3844(3),c = 15.1925(11) ?,β = 124.238(9)o,V = 2368.6(2) ?~3,Z = 8,D_c = 1.969 mg/cm~(-3),M_r = 351.12,F(000) = 1432,R = 0.0475,wR = 0.1617 for 2088 observed reflections(I > 2σ(I)). Both the nitrogen atoms of tetrazole group and oxygen atoms of phosphonate(phosphonic acid) groups in the ligands coordinated with the metal cobalt. The magnetic property of complex 1 is also investigated.
Two cobalt coordination polymers with the same 2D structure have been hydrothermally synthesized based on two bifunctional ligands with tetrazole and phosphonate (phosphonic acid) groups, namely, diethyl 4- (2H- 1,2,3,4-tetrazol-5-yl) The structures of the two complexes are characterized by elemental analysis, IR, TGA and X- (4-tetrazol-5-yl) benzylphosphonic acid The pink block crystals of complex [Co (L1) (H 2 O)] · H 2 O (1) belong to the monoclinic system, space group C2 / m with a = 20.8390 (11), b = 7.2695 (3), c = 10.0156 (6), β = 109.773 (7) o, V = 1427.80 (13) ~ 3, Z = 4, D_c = 1.680 mg / cm -3, M_r = 361.16, The purple block crystals of complex [Co (L2) (H 2 O)] · 2H 2 O (2) also belong to (F) = 740, R = 0.0316 and wR = 0.0826 for 1702 observed reflections (I> 2σ (I) the monoclinic system has space group C2 / c with a = 25.5382 (16), b = 7.3844 (3), c = 15.1925 (11) Z = 8, D_c = 1.969 mg / cm ~ ( (I> -3), M_r = 351.12, F (000) = 1432, R = 0.0475, wR = 0.1617 for 2088 observed reflections (I> 2σ (I)). Both the nitrogen atoms of tetrazole group and oxygen atoms of phosphonic acid ) groups in the ligands coordinated with the metal cobalt. The magnetic property of complex 1 is also investigated.