Ethyl 2-methoxy-6-[(triphenylphosphoranylidene)amino]nicotinate and ethyl 2-methylsulfanyl-6-[(triphenylphosphoranylidene)amino]nicotinate
Cobo, Justo; Glidewell, Christopher; Low, John N.; Orozco, Fabían; Acta Crystallographica Section C 64 (2008) o233–o236; doi:10.1107/S0108270108006963

data_2016568
_publ_section_title
;
 Ethyl 2-methoxy-6-[(triphenylphosphoranylidene)amino]nicotinate and
 ethyl 2-methylsulfanyl-6-[(triphenylphosphoranylidene)amino]nicotinate
;
_journal_coeditor_code           SK3213
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o233
_journal_page_last               o236
_journal_paper_doi               10.1107/S0108270108006963
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C27 H25 N2 O3 P'
_chemical_formula_moiety         'C27 H25 N2 O3 P'
_chemical_formula_sum            'C27 H25 N2 O3 P'
_chemical_formula_weight         456.46
_chemical_name_systematic
;
ethyl 2-methoxy-6-[(triphenylphosphoranylidene)amino]nicotinate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                73.722(18)
_cell_angle_beta                 72.389(16)
_cell_angle_gamma                85.93(2)
_cell_formula_units_Z            2
_cell_length_a                   8.5336(18)
_cell_length_b                   11.063(3)
_cell_length_c                   13.426(3)
_cell_measurement_reflns_used    5321
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.16
_cell_volume                     1159.5(5)
_computing_cell_refinement       'DIRAX/LSQ (Duisenberg <i>et al.</i>,  2000)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'EVALCCD (Duisenberg <i>et al.</i>,  2003)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material
'SHELXL97 (Sheldrick, 2008) and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement
'OSCAIL (McArdle, 2003) and SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2004 (Burla <i>et al.</i>,  2005)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker Nonius KappaCCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker Nonius FR591 rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0803
_diffrn_reflns_av_sigmaI/netI    0.0615
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            30925
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.16
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.151
_exptl_absorpt_correction_T_max  0.978
_exptl_absorpt_correction_T_min  0.972
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.307
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.320
_refine_diff_density_min         -0.399
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         5321
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0954
_refine_ls_R_factor_gt           0.0545
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0304P)^2^+1.1007P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1034
_refine_ls_wR_factor_ref         0.1205
_reflns_number_gt                3750
_reflns_number_total             5321
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk3213.cif
_cod_data_source_block           I
_cod_database_code               2016568
_cod_database_fobs_code          2016568