#------------------------------------------------------------------------------ #$Date: 2016-12-06 16:28:16 +0200 (Tue, 06 Dec 2016) $ #$Revision: 188978 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/52/06/1520693.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_1520693 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 'C13 H15 N O' _chemical_formula_weight 201.26 _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 101.33(1) _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 10.776(1) _cell_length_b 10.257(1) _cell_length_c 9.987(1) _cell_volume 1082.35(19) _diffrn_ambient_temperature 170 _diffrn_radiation_probe x-ray _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71069 _exptl_absorpt_coefficient_mu 0.078 _exptl_crystal_density_diffrn 1.236 _exptl_crystal_F_000 432 _refine_ls_goodness_of_fit_ref 1.082 _refine_ls_number_parameters 214 _refine_ls_number_reflns 4373 _refine_ls_R_factor_gt 0.059 _refine_ls_wR_factor_gt 0.143 _cod_data_source_file Acta-Chem-Scand-1998-52-391-398-4.cif _cod_data_source_block 4 _cod_depositor_comments ; No atomic coordinates in the paper, a dummy atom was added The dummy atom was replaced by unknown values. This is the standard way of marking entries in the COD that do not contain coordinates. Antanas Vaitkus, 2016-12-06 ; _cod_original_sg_symbol_H-M 'P 21/c' _cod_database_code 1520693 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 x,y,z 2 -x,1/2+y,1/2-z 3 -x,-y,-z 4 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 ? ? ? ? ? ? ?