Novel Five- and Six-Membered Rings of Phosphorus-Selenium Heterocycles from Selenation of Amido-Schiff Bases.
Hua, Guoxiong; Cordes, David B.; Slawin, Alexandra M. Z.; Woollins, J. Derek; ACS omega 5 (2020) 11737–11744; doi:10.1021/acsomega.0c01064

data_4517656
_publ_section_title
;
 Novel Five- and Six-Membered Rings of Phosphorus-Selenium Heterocycles
 from Selenation of Amido-Schiff Bases.
;
_journal_issue                   20
_journal_name_full               'ACS omega'
_journal_page_first              11737
_journal_page_last               11744
_journal_paper_doi               10.1021/acsomega.0c01064
_journal_volume                  5
_journal_year                    2020
_chemical_formula_moiety         'C28 H22 O4 P2 Se4'
_chemical_formula_sum            'C28 H22 O4 P2 Se4'
_chemical_formula_weight         800.27
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-11-29
_audit_creation_method           'by CrystalStructure 4.2'
_cell_angle_alpha                90.0000
_cell_angle_beta                 98.244(7)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   7.220(2)
_cell_length_b                   14.280(5)
_cell_length_c                   13.986(4)
_cell_measurement_reflns_used    2625
_cell_measurement_temperature    173
_cell_measurement_theta_max      25.40
_cell_measurement_theta_min      2.00
_cell_volume                     1427.1(8)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b45'
_computing_data_collection       'CrystalClear-SM Expert 2.1 b45 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b45'
_computing_molecular_graphics    'CrystalStructure 4.2'
_computing_publication_material  'CrystalStructure 4.2 (Rigaku, 2015)'
_computing_structure_refinement  'SHELXL Version 2017/1 (Sheldrick, 2008)'
_computing_structure_solution    'DIRDIF99-PATTY (Gould, et al., 1999)'
_diffrn_ambient_temperature      173
_diffrn_detector_area_resol_mean 5.814
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.1967
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            16891
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.360
_diffrn_reflns_theta_min         2.049
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.288
_exptl_absorpt_correction_T_max  0.853
_exptl_absorpt_correction_T_min  0.300
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.862
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             776.00
_exptl_crystal_size_max          0.330
_exptl_crystal_size_mid          0.040
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.81
_refine_diff_density_min         -0.34
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.897
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2616
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1034
_refine_ls_R_factor_gt           0.0427
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0341P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0775
_refine_ls_wR_factor_ref         0.0875
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1383
_reflns_number_total             2616
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ao0c01064_si_001.cif
_cod_data_source_block           6
_cod_depositor_comments
'Adding full bibliography for 4517654--4517661.cif.'
_cod_database_code               4517656
_shelx_res_checksum              56901
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