#------------------------------------------------------------------------------ #$Date: 2015-06-29 15:52:02 +0300 (Mon, 29 Jun 2015) $ #$Revision: 139753 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/52/06/1520690.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_1520690 loop_ _publ_author_name 'Karlsen, Hege' 'Kolsaker, Per' 'Romming, Christian' 'Uggerud, Einar' _publ_section_title ; The Analogy Between C=O and C=C(CN)2: Structural Properties of 3-(N,N-Dialkylamino)propenones and 4-(N,N-Dialkylamino)-1,1-dicyano- 1,3-butadienes ; _journal_name_full 'Acta Chemica Scandinavica' _journal_page_first 391 _journal_page_last 398 _journal_paper_doi 10.3891/acta.chem.scand.52-0391 _journal_volume 52 _journal_year 1998 _chemical_formula_sum 'C16 H17 N3' _chemical_formula_weight 251.33 _space_group_IT_number 15 _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 15 _symmetry_space_group_name_Hall '-C 2yc' _symmetry_space_group_name_H-M 'C 1 2/c 1' _cell_angle_alpha 90 _cell_angle_beta 128.75(1) _cell_angle_gamma 90 _cell_formula_units_Z 8 _cell_length_a 21.242(1) _cell_length_b 10.485(1) _cell_length_c 16.214(1) _cell_volume 2816.3(5) _diffrn_ambient_temperature 150 _diffrn_radiation_probe x-ray _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71069 _exptl_absorpt_coefficient_mu 0.072 _exptl_crystal_density_diffrn 1.185 _exptl_crystal_F_000 1072 _refine_ls_goodness_of_fit_ref 1.078 _refine_ls_number_parameters 240 _refine_ls_number_reflns 7191 _refine_ls_R_factor_gt 0.044 _refine_ls_wR_factor_gt 0.119 _cod_data_source_file Acta-Chem-Scand-1998-52-391-398-1.cif _cod_data_source_block 1 _cod_depositor_comments ; No atomic coordinates in the paper, a dummy atom was added ; _cod_cif_authors_sg_H-M 'C 2/c' _cod_database_code 1520690 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 x,y,z 2 -x,y,1/2-z 3 -x,-y,-z 4 x,-y,1/2+z 5 1/2+x,1/2+y,z 6 1/2-x,1/2+y,1/2-z 7 1/2-x,1/2-y,-z 8 1/2+x,1/2-y,1/2+z loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_calc_flag H H 0 0 0 0.023 dum