New Series of Organogelators Derived from a Combinatorial Library of Primary Ammonium Monocarboxylate Salts
Ballabh, Amar; Trivedi, Darshak R.; Dastidar, Parthasarathi; Chemistry of Materials 18 (2006) 3795–; doi:10.1021/cm0605015

data_4001548
_publ_section_title
;
 New Series of Organogelators Derived from a Combinatorial Library of
 Primary Ammonium Monocarboxylate Salts
;
_journal_issue                   16
_journal_name_full               'Chemistry of Materials'
_journal_page_first              3795
_journal_paper_doi               10.1021/cm0605015
_journal_volume                  18
_journal_year                    2006
_chemical_formula_sum            'C20 H32 Br N O2'
_chemical_formula_weight         398.38
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.342(2)
_cell_length_b                   5.7760(8)
_cell_length_c                   51.085(7)
_cell_measurement_temperature    293(2)
_cell_volume                     4231.9(10)
_computing_cell_refinement       'BRUKER AXS SMART 3'
_computing_data_collection       'BRUKER AXS SMART 3'
_computing_data_reduction        'BRUKER AXS SMART 3'
_computing_molecular_graphics    'PLATON, MERCURY 1.2'
_computing_structure_refinement  'SHELXL-97 (Shelrick, 1997)'
_computing_structure_solution    'SHELXS 97 (Shelrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER SMART CCD AREA DETECTOR'
_diffrn_measurement_method       PHI-OMEGA
_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  0.0469
_diffrn_reflns_av_sigmaI/netI    0.0388
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       55
_diffrn_reflns_limit_l_min       -53
_diffrn_reflns_number            15314
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         1.59
_diffrn_standards_decay_%        <10%
_exptl_absorpt_coefficient_mu    1.954
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.251
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             1680
_exptl_crystal_size_max          0.97mm
_exptl_crystal_size_mid          0.56mm
_exptl_crystal_size_min          0.12mm
_refine_diff_density_max         0.485
_refine_diff_density_min         -0.558
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.168
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     213
_refine_ls_number_reflns         2769
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.168
_refine_ls_R_factor_all          0.0881
_refine_ls_R_factor_gt           0.0664
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0749P)^2^+9.1505P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1693
_refine_ls_wR_factor_ref         0.1827
_reflns_number_gt                2064
_reflns_number_total             2769
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm0605015si20060301_073107.cif
_cod_data_source_block           ab0668
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'ORTHORHOMBIC' changed to
'orthorhombic' 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_sg_symbol_H-M      'P bca'
_cod_database_code               4001548