Conformational and Isomeric Preferences of Six-Membered Inorganic Heterocycles [EtNP(E)(OR)]3 (E = Lone Pair, O, S, or Se): A Synthetic, Spectroscopic, Structural, and Computational Study
Ramaswamy Murugavel; Ganesan Prabusankar; Ashish Sharma; Raghavan B. Sunoj; Ray J. Butcher; Inorganic Chemistry 48 (2009) 2048–2059; doi:10.1021/ic801945q

data_4301565
_publ_contact_author_address
;
Department of Chemistry
Indian Institute of Technology Bombay
Powai
Mumbai
Maharastra
400076
INDIA
;
_publ_contact_author_email       RMV@CHEM.IITB.AC.IN
_publ_contact_author_name        'Ramaswamy Murugavel'
_publ_section_title
;
Conformational and Isomeric Preferences of Six-Membered Inorganic
Heterocycles [EtNP(E)(OR)]3 (E = Lone Pair, O, S, or Se): A Synthetic,
Spectroscopic, Structural, and Computational Study
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2048
_journal_page_last               2059
_journal_paper_doi               10.1021/ic801945q
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         '[EtNP(OAr)]3 '
_chemical_formula_sum            'C30 H42 N3 O3 P3'
_chemical_formula_weight         585.58
_chemical_melting_point          166
_chemical_name_common            Cyclotriphosphazne
_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                 101.520(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5910(15)
_cell_length_b                   19.2723(19)
_cell_length_c                   20.150(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      14
_cell_measurement_theta_min      11
_cell_volume                     3269.0(7)
_computing_cell_refinement       ARGUSS
_computing_data_collection       ARGUSS
_computing_data_reduction        OSCAIL
_computing_molecular_graphics    PLUTON/ORTEP
_computing_publication_material  CIFTAB
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  MACH3
_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  0.0070
_diffrn_reflns_av_sigmaI/netI    0.0343
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            6544
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.48
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.215
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular blocks'
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.470
_refine_diff_density_min         -0.428
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         5752
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0783
_refine_ls_R_factor_gt           0.0518
_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^)+(0.0802P)^2^+0.6998P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1445
_refine_ls_wR_factor_ref         0.1534
_reflns_number_gt                4015
_reflns_number_total             5752
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801945q_si_001_4.cif
_cod_data_source_block           rm043a
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4301565