data_2005047 _journal_name_full 'Acta Crystallographica' _journal_year 1996 _journal_volume C52 _journal_page_first 1430 _journal_page_last 1436 _publ_section_title ; Les Compos\'es de la Metformine avec les Ions Co^II^, Cu^II^ et Ni^II^ ; _chemical_formula_sum 'C4 H11 Cl2 Cu N5' _chemical_formula_weight 263.6 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,-z' '1/2+x,1/2-y,1/2+z' '-1/2-x,-1/2+y,-1/2-z' _symmetry_space_group_name_H-M 'P 21/n' _cell_length_a 7.727(1) _cell_length_b 16.675(5) _cell_length_c 8.023(2) _cell_angle_alpha 90 _cell_angle_beta 115.25(2) _cell_angle_gamma 90 _cell_volume 935.0(4) _cell_formula_units_Z 4 _exptl_crystal_density_diffrn 1.873 _exptl_crystal_density_meas 1.85(2) _cell_measurement_temperature 293 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Cu 0.0363(1) 0.4340(1) 0.7057(1) 0.0270(1) Cl(1) -0.0428(2) 0.3175(1) 0.5385(2) 0.0410(1) Cl(2) -0.2387(2) 0.4986(1) 0.5053(2) 0.0340(1) N(1) 0.2393(6) 0.3811(3) 0.9109(6) 0.0300(4) N(2) 0.4847(8) 0.3653(3) 1.2040(7) 0.0440(5) N(3) 0.3472(7) 0.4882(3) 1.1169(6) 0.0320(4) N(4) 0.1053(7) 0.5324(3) 0.8446(6) 0.0340(4) N(5) 0.2520(7) 0.6206(3) 1.0891(6) 0.3050(4) C(1) 0.3535(7) 0.4093(3) 1.0697(7) 0.0280(4) C(2) 0.2288(7) 0.5480(3) 1.0096(7) 0.0270(4) C(51) 0.412(1) 0.6436(4) 1.2593(8) 0.0410(6) C(52) 0.133(1) 0.6870(4) 0.9820(9) 0.0440(6) H(1) 0.2610 0.3272 0.9037 0.0641 H(21) 0.4962 0.3160 1.1611 0.0641 H(22) 0.5788 0.3871 1.3001 0.0641 H(3) 0.4016 0.4980 1.2372 0.0641 H(4) 0.0471 0.5815 0.7894 0.0641 H(511) 0.3744 0.6846 1.3236 0.0641 H(512) 0.4370 0.6135 1.3564 0.0641 H(513) 0.4874 0.6789 1.2251 0.0641 H(521) 0.1625 0.7020 0.8839 0.0641 H(522) 0.1369 0.7312 1.0568 0.0641 H(523) 0.0029 0.6796 0.9488 0.0641