#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/17/1001743.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1001743 loop_ _publ_author_name 'Leclaire, A' 'Monier, J C' _publ_section_title ; Structure cristalline du nitrate de calcium tetrahydrate ; _journal_coden_ASTM CHDCAQ _journal_name_full ; Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, Serie C, Sciences Chimiques (1966-) ; _journal_page_first 1555 _journal_page_last 1557 _journal_volume 271 _journal_year 1970 _chemical_formula_structural 'Ca (N O3)2 (H2 O)4' _chemical_formula_sum 'Ca H8 N2 O10' _chemical_name_mineral Nitrocalcite _chemical_name_systematic 'Calcium nitrate tetrahydrate' _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 14 _symmetry_space_group_name_Hall '-P 2ybc' _symmetry_space_group_name_H-M 'P 1 21/c 1' _cell_angle_alpha 90 _cell_angle_beta 106.50(33) _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 6.268(6) _cell_length_b 9.116(9) _cell_length_c 14.83(1) _cell_volume 812.5 _exptl_crystal_density_meas 1.88 _refine_ls_R_factor_all 0.051 _[local]_cod_chemical_formula_sum_orig 'H8 Ca N2 O10' _cod_database_code 1001743 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,1/2+y,1/2-z -x,-y,-z x,1/2-y,1/2+z loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Ca1 Ca2+ 4 e 0.3277(4) 0.4102(2) 0.3670(1) 1. 0 d N1 N5+ 4 e 0.0726(16) 0.3716(9) 0.1684(7) 1. 0 d N2 N5+ 4 e 0.4800(15) 0.7334(8) 0.4053(6) 1. 0 d O1 O2- 4 e 0.0601(14) 0.4844(7) 0.2171(5) 1. 0 d O2 O2- 4 e 0.1897(14) 0.2686(7) 0.2121(5) 1. 0 d O3 O2- 4 e -0.0237(14) 0.3655(8) 0.0846(5) 1. 0 d O4 O2- 4 e 0.5418(12) 0.6210(6) 0.4585(5) 1. 0 d O5 O2- 4 e 0.5507(14) 0.8544(7) 0.4342(5) 1. 0 d O6 O2- 4 e 0.3509(13) 0.7117(7) 0.3269(5) 1. 0 d O7 O2- 4 e 0.6005(12) 0.4634(7) 0.2813(5) 1. 2 d O8 O2- 4 e 0.0365(13) 0.5368(7) 0.4161(5) 1. 2 d O9 O2- 4 e 0.0808(13) 0.2205(7) 0.3984(5) 1. 2 d O10 O2- 4 e 0.5788(15) 0.1966(8) 0.3859(6) 1. 2 d loop_ _atom_type_symbol _atom_type_oxidation_number Ca2+ 2.000 N5+ 5.000 O2- -2.000 H1+ 1.000