Substituent effects in pyridyl-functionalized pyrylium salts, pyridines and λ<sup>3</sup>,σ<sup>2</sup>-phosphinines: a fundamental and systematic study.
Loibl, Antonia; Oschmann, Wiebke; Vogler, Maria; Pidko, Evgeny A.; Weber, Manuela; Wiecko, Jelena; Müller, Christian; Dalton transactions (Cambridge, England : 2003) 47 (2018) 9355–9366; doi:10.1039/c8dt01441h

data_7046650
_publ_section_title
;
 Substituent effects in pyridyl-functionalized pyrylium salts, pyridines
 and \l<sup>3</sup>,\s<sup>2</sup>-phosphinines: a fundamental and
 systematic study.
;
_journal_issue                   28
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9355
_journal_page_last               9366
_journal_paper_doi               10.1039/c8dt01441h
_journal_volume                  47
_journal_year                    2018
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C27 H18 N2 O5 W'
_chemical_formula_sum            'C27 H18 N2 O5 V0 W'
_chemical_formula_weight         634.28
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-04-03 deposited with the CCDC.
2018-06-07 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.967(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3701(5)
_cell_length_b                   16.0053(7)
_cell_length_c                   17.5299(11)
_cell_measurement_reflns_used    20172
_cell_measurement_temperature    210(2)
_cell_measurement_theta_max      59.13
_cell_measurement_theta_min      6.56
_cell_volume                     2345.3(2)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED'
_computing_molecular_graphics    'Ortep (Johnson, 1996)'
_computing_publication_material  'SHELXL-97, X-STEP32, Microsoft Word'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      210(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'STOE IPDS 2T'
_diffrn_measurement_method       'rotation method'
_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  0.0441
_diffrn_reflns_av_sigmaI/netI    0.0343
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            22039
_diffrn_reflns_theta_full        29.19
_diffrn_reflns_theta_max         29.19
_diffrn_reflns_theta_min         3.28
_exptl_absorpt_coefficient_mu    4.967
_exptl_absorpt_correction_T_max  0.5853
_exptl_absorpt_correction_T_min  0.1665
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   numerical
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.796
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.819
_refine_diff_density_min         -0.950
_refine_diff_density_rms         0.106
_refine_ls_extinction_coef       0.00273(15)
_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   0.957
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         6186
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.957
_refine_ls_R_factor_all          0.0376
_refine_ls_R_factor_gt           0.0262
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0366P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0593
_refine_ls_wR_factor_ref         0.0619
_reflns_number_gt                4837
_reflns_number_total             6186
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c8dt01441h2.cif
_cod_data_source_block           al65
_cod_depositor_comments
'Adding full bibliography for 7046645--7046658.cif.'
_cod_original_sg_symbol_Hall     '-P 2YBC'
_cod_original_sg_symbol_H-M      'p 21/c'
_cod_database_code               7046650