An unsaturated hydrogen bonded network generated from three-fold symmetric carbamates
Wang, Zijun; Lee, Joseph; Oian, Casey; Hou, Xiaodong; Wang, Zhihan; Ugrinov, Angel; Singh, Rajiv K.; Wysocki, Erin; Chu, Qianli R.; CrystEngComm 16 (2014) 7176–; doi:10.1039/C4CE00363B

data_7217397
_publ_section_title
;
 An unsaturated hydrogen bonded network generated from three-fold
 symmetric carbamates
;
_journal_issue                   31
_journal_name_full               CrystEngComm
_journal_page_first              7176
_journal_paper_doi               10.1039/C4CE00363B
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C27 H45 N3 O6'
_chemical_formula_sum            'C27 H45 N3 O6'
_chemical_formula_weight         507.66
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 91.467(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.2940(14)
_cell_length_b                   13.8436(10)
_cell_length_c                   9.8230(7)
_cell_measurement_reflns_used    6506
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      66.80
_cell_measurement_theta_min      3.81
_cell_volume                     2894.7(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.935
_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0321
_diffrn_reflns_av_sigmaI/netI    0.0360
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            12037
_diffrn_reflns_theta_full        66.80
_diffrn_reflns_theta_max         66.80
_diffrn_reflns_theta_min         3.81
_exptl_absorpt_coefficient_mu    0.663
_exptl_absorpt_correction_T_max  0.9856
_exptl_absorpt_correction_T_min  0.8059
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Acta Cryst (1995). A51, 33-38'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.165
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1104
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.198
_refine_diff_density_min         -0.259
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.121
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     328
_refine_ls_number_reflns         4804
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.121
_refine_ls_R_factor_all          0.0579
_refine_ls_R_factor_gt           0.0487
_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^)+(0.0497P)^2^+2.1795P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1285
_refine_ls_wR_factor_ref         0.1336
_reflns_number_gt                3992
_reflns_number_total             4804
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00363b2.cif
_cod_data_source_block           cu_xxh7_0ma
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        2894.7(3)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7217397