#------------------------------------------------------------------------------ #$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: svn://www.crystallography.net/cod/cif/2/2101279.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2101279 loop_ _publ_author_name 'Lou\"er, D.' 'Lou\"er, M.' 'Dzyabchenko, V. A.' 'Agafonov, V.' 'Ceolin, R.' _publ_section_title ; Structure of a metastable phase of piracetami from X-ray powder diffraction using the atom--atom potential method ; _journal_issue 2 _journal_name_full 'Acta Crystallographica Section B' _journal_page_first 182 _journal_page_last 187 _journal_volume 51 _journal_year 1995 _chemical_formula_sum 'C6 H10 N2 O2' _chemical_formula_weight 142.2 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _cell_angle_alpha 90 _cell_angle_beta 99.01(3) _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 6.747(2) _cell_length_b 13.418(3) _cell_length_c 8.090(2) _diffrn_radiation_type Cu _diffrn_radiation_wavelength 1.540598 _exptl_crystal_density_diffrn 1.306 _[local]_cod_data_source_file ha0135.cif loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z C(1) .067(2) .4780(10) .237(2) C(2) .271(2) .5130(10) .3250(10) C(3) .413(2) .4470(10) .238(2) C(4) .289(2) .3620(10) .1460(10) C(5) -.090(2) .3430(10) .0680(10) C(6) -.135(2) .2490(10) .1700(10) N(1) .084(2) .3920(10) .1480(10) N(2) -.2890(10) .2000(10) .1010(10) O(1) -.1060(10) .5100(10) .2570(10) O(2) -.0210(10) .2200(10) .2990(10) H(21) .279 .585 .297 H(22) .271 .494 .446 H(31) .467 .492 .164 H(32) .513 .424 .333 H(41) .324 .362 .033 H(42) .337 .299 .212 H(51) -.220 .377 .028 H(52) -.053 .302 -.048 H(211) -.296 .201 -.040 H(221) -.273 .128 .144 loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance C(1) C(2) 1.52(2) C(1) N(1) 1.37(2) C(1) O(1) 1.27(2) C(2) C(3) 1.55(2) C(3) C(4) 1.54(2) C(4) N(1) 1.45(2) C(5) C(6) 1.57(2) C(5) N(1) 1.41(2) C(6) N(2) 1.28(2) C(6) O(2) 1.250(10) H(211) O(2) 2.12 H(221) O(1) 2.00 loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle C(2) C(1) N(1) 111(2) C(2) C(1) O(1) 128(3) N(1) C(1) O(1) 120(2) C(1) C(2) C(3) 101.0(10) C(2) C(3) C(4) 108(2) C(3) C(4) N(1) 103(2) C(6) C(5) N(1) 110(2) C(5) C(6) N(2) 113(2) C(5) C(6) O(2) 123(2) N(2) C(6) O(2) 124(2) N(2) H(211) O(2) 122 N(2) H(221) O(1) 148 _cod_database_code 2101279