Structure-directing weak phosphoryl <i>X</i>H···O=P (<i>X</i> = C, N) hydrogen bonds in cyclic oxazaphospholidines and oxazaphosphinanes
van der Lee, A.; Rolland, M.; Marat, X.; Virieux, D.; Volle, J.-N.; Pirat, J.-L.; Acta Crystallographica Section B 64 (2008) 196–205; doi:10.1107/S0108768107061770

data_2104077
_publ_section_title
;
 Structure-directing weak phosphoryl
 <i>X</i>H&#x00B7;&#x00B7;&#x00B7;O=P (<i>X</i> = C, N) hydrogen bonds
 in cyclic oxazaphospholidines and oxazaphosphinanes
;
_journal_coeditor_code           GP5020
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              196
_journal_page_last               205
_journal_paper_doi               10.1107/S0108768107061770
_journal_volume                  64
_journal_year                    2008
_chemical_formula_moiety         'C25 H28 N1 O2 P1'
_chemical_formula_sum            'C25 H28 N O2 P'
_chemical_formula_weight         405.48
_chemical_name_systematic
;
(2R,4S,5R)-3-tert-butyl-2-benzyl-4,5-diphenyl-
[1,3,2]-oxazaphospholidine2-oxide
;
_space_group_IT_number           14
_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
_audit_creation_method           CRYSTALS_ver_12.82
_cell_angle_alpha                90
_cell_angle_beta                 119.04(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.284(2)
_cell_length_b                   21.262(4)
_cell_length_c                   12.768(2)
_cell_measurement_reflns_used    23
_cell_measurement_temperature    175
_cell_measurement_theta_max      16.21
_cell_measurement_theta_min      10.12
_cell_volume                     2440.8(9)
_computing_cell_refinement       'Enraf-Nonius (1989)'
_computing_data_collection       'Enraf-Nonius (1989)'
_computing_data_reduction
;
XCAD4 (Harms, K. \& Wocadlo, S., 1995)
;
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      175
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.862
_diffrn_measurement_device_type  'Enraf-Nonius CAD4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.04
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            2619
_diffrn_reflns_theta_full        18.888
_diffrn_reflns_theta_max         21.963
_diffrn_reflns_theta_min         2.060
_diffrn_standards_decay_%        0.4
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_T_max  0.91
_exptl_absorpt_correction_T_min  0.81
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            'translucent pale white'
_exptl_crystal_density_diffrn    1.103
_exptl_crystal_description       needle
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.46
_refine_diff_density_min         -0.52
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.1637
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     132
_refine_ls_number_reflns         1037
_refine_ls_number_restraints     19
_refine_ls_R_factor_all          0.2390
_refine_ls_R_factor_gt           0.0846
_refine_ls_shift/su_max          0.000081
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982)
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)]
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax
 Method = Robust Weighting (Prince, 1982)
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^
 A~i~ are:
 17.0 7.24 12.9 7.66 1.45
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2384
_refine_ls_wR_factor_gt          0.0913
_refine_ls_wR_factor_ref         0.0913
_reflns_number_gt                1037
_reflns_number_total             2576
_reflns_threshold_expression     I>2.0\s(I)
_cod_data_source_file            gp5020.cif
_cod_data_source_block           VI
_cod_depositor_comments
;
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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z 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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2440.9(9)
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_original_formula_sum        'C25 H28 N1 O2 P1'
_cod_database_code               2104077