4-Substituted 1-Methyl-1<i>H</i>-2,3-benzodiazepine Compounds
Blake, A. J.; Harding, M.; Sharp, J. T.; Acta Crystallographica Section C 51 (1995) 1621–1627; doi:10.1107/S0108270195001120

data_2003778
_publ_section_title
;
 4-Substituted 1-Methyl-1<i>H</i>-2,3-benzodiazepine Compounds
;
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1621
_journal_page_last               1627
_journal_paper_doi               10.1107/S0108270195001120
_journal_volume                  51
_journal_year                    1995
_chemical_formula_structural     'C18 H18 N2'
_chemical_formula_sum            'C18 H18 N2'
_chemical_formula_weight         262.34
_chemical_melting_point          336.5(5)
_chemical_name_systematic
;
 1(R)-methyl-4(1'(R)-phenylethyl)-1H-2,3-benzodiazepine
;
_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'
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 115.76(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.502(2)
_cell_length_b                   21.675(13)
_cell_length_c                   8.741(3)
_cell_measurement_reflns_used    11
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      13
_cell_volume                     1450.7(11)
_computing_cell_refinement       'DIF4 (Stoe & Cie, 1990a)'
_computing_data_collection       'DIF4 (Stoe & Cie, 1990a)'
_computing_data_reduction        'REDU4 (Stoe & Cie, 1990b)'
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 1992)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1985)'
_diffrn_ambient_temperature      298(2)
_diffrn_measurement_device       'Stoe Stadi-4 four-circle diffractometer'
_diffrn_measurement_method
;
\w-2\q scans using on-line profile fitting (Clegg, 1981)
;
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0241
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1898
_diffrn_reflns_theta_max         22.51
_diffrn_reflns_theta_min         1.88
_diffrn_standards_decay_%        6
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_description       Plate
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.62
_exptl_crystal_size_mid          0.54
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.155
_refine_ls_extinction_coef       0.024(4)
_refine_ls_extinction_method     'SHELXL93 (Sheldrick, 1993)'
_refine_ls_goodness_of_fit_all   1.033
_refine_ls_goodness_of_fit_obs   1.065
_refine_ls_matrix_type           full
_refine_ls_number_parameters     170
_refine_ls_number_reflns         1895
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_restrained_S_obs      1.065
_refine_ls_R_factor_all          0.0559
_refine_ls_R_factor_obs          0.0452
_refine_ls_shift/esd_max         0.003
_refine_ls_shift/esd_mean        0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_scheme
;calc w = 1/[s^2^(Fo^2^) + (0.0666P)^2^ + 0.4158P]
where P = (Fo^2^ + 2Fc^2^)/3
;
_refine_ls_wR_factor_all         0.1281
_refine_ls_wR_factor_obs         0.1194
_reflns_number_observed          1577
_reflns_number_total             1898
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ha1139.cif
_cod_data_source_block           1
_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.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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:

'_chemical_melting_point' value '336-337K' was changed to '336.5(5)'
- the average value was taken and precision was
estimated.

'_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.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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        1450.8(11)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2003778