N-Thio- and N-selenophenacylamidines: electrophilic activation as a route to some 1-hetero-3-aza-4-dimethylaminobuta-1,3-dienes
Manh, Gabriel T.; Purseigle, Franck; Dubreuil, Didier; Pradère, Jean Paul; Guingant, André; Danion-Bougot, Renée; Danion, Daniel; Toupet, Loic; Journal of the Chemical Society, Perkin Transactions 1  (1999) 2821–; doi:10.1039/a903150b

data_7213085
_publ_section_title
;
 N-Thio- and N-selenophenacylamidines: electrophilic activation as a route
 to some 1-hetero-3-aza-4-dimethylaminobuta-1,3-dienes
;
_journal_issue                   19
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 1'
_journal_page_first              2821
_journal_paper_doi               10.1039/a903150b
_journal_year                    1999
_chemical_formula_sum            'C13 H18 N2 O3'
_chemical_formula_weight         250.29
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.15(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.638(7)
_cell_length_b                   7.998(2)
_cell_length_c                   12.9680(10)
_cell_measurement_temperature    293(2)
_cell_volume                     1308.8(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0110
_diffrn_reflns_av_sigmaI/netI    0.0143
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            2770
_diffrn_reflns_theta_full        26.96
_diffrn_reflns_theta_max         26.96
_diffrn_reflns_theta_min         2.19
_exptl_absorpt_coefficient_mu    0.091
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.270
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.33
_refine_diff_density_max         1.003
_refine_diff_density_min         -0.497
_refine_diff_density_rms         0.056
_refine_ls_extinction_coef       0.007(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     213
_refine_ls_number_reflns         2651
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0770
_refine_ls_R_factor_gt           0.0611
_refine_ls_shift/su_max          0.172
_refine_ls_shift/su_mean         0.012
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0889P)^2^+1.2514P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1663
_refine_ls_wR_factor_ref         0.1789
_reflns_number_gt                2143
_reflns_number_total             2651
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            903150bsup1.cif
_cod_data_source_block           mg
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_original_formula_sum        'C13 H16 N2 O2, H2 O'
_cod_database_code               7213085