Copper-induced fluorescence enhancement and particle-size decrease of a C-6 unsubstituted tetrahydropyrimidine racemate
Huang, Lan; Su, Jingru; Zhong, Desheng; Wang, Haibo; Liu, Ruiyuan; Yu, Le; Zhu, Qiuhua; Liu, Shuwen; RSC Advances 3 (2013) 13286–; doi:10.1039/c3ra41121d

data_7239018
_publ_section_title
;
 Copper-induced fluorescence enhancement and particle-size decrease of a
 C-6 unsubstituted tetrahydropyrimidine racemate
;
_journal_issue                   32
_journal_name_full               'RSC Advances'
_journal_page_first              13286
_journal_paper_doi               10.1039/c3ra41121d
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C27 H26 N2 O6'
_chemical_formula_weight         474.50
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 101.661(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   21.750(6)
_cell_length_b                   9.476(3)
_cell_length_c                   24.315(7)
_cell_measurement_reflns_used    1182
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      21.09
_cell_measurement_theta_min      2.35
_cell_volume                     4908(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0487
_diffrn_reflns_av_sigmaI/netI    0.0798
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            8531
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9811
_exptl_absorpt_correction_T_min  0.9749
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Higashi, T. (1995)'
_exptl_crystal_density_diffrn    1.284
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.212
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         4218
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.1063
_refine_ls_R_factor_gt           0.0574
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0573P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1305
_refine_ls_wR_factor_ref         0.1573
_reflns_number_gt                2348
_reflns_number_total             4218
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra41121d.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'C2/c '
_cod_database_code               7239018