Synthesis of a Masked 2,3-Diaminoindole.
Mannes, Philip Z.; Onyango, Evans O.; Gribble, Gordon W.; The Journal of organic chemistry 81 (2016) 12478–12481; doi:10.1021/acs.joc.6b02318

data_4037432
_publ_section_title
;
 Synthesis of a Masked 2,3-Diaminoindole.
;
_journal_issue                   24
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              12478
_journal_page_last               12481
_journal_paper_doi               10.1021/acs.joc.6b02318
_journal_volume                  81
_journal_year                    2016
_chemical_formula_moiety         'C23 H17 N3 O2 S'
_chemical_formula_sum            'C23 H17 N3 O2 S'
_chemical_formula_weight         399.45
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2016-08-22
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 96.923(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.3522(5)
_cell_length_b                   8.1594(3)
_cell_length_c                   20.5295(8)
_cell_measurement_temperature    173(2)
_cell_volume                     1887.72(13)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  Rigaku-OxfordDiffracti0on
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0350
_diffrn_reflns_av_unetI/netI     0.0454
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.972
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            7342
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.972
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         71.532
_diffrn_reflns_theta_min         4.248
_exptl_absorpt_coefficient_mu    1.732
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75942
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.406
_exptl_crystal_description       needle
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.455
_refine_diff_density_min         -0.372
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         3577
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0503
_refine_ls_R_factor_gt           0.0424
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0624P)^2^+0.2015P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1064
_refine_ls_wR_factor_ref         0.1130
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3083
_reflns_number_total             3577
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b02318_si_002.cif
_cod_data_source_block           grib-eg426b_pl
_cod_original_cell_volume        1887.73(13)
_cod_database_code               4037432
_shelxl_version_number           2014/6
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C6(H6), C7(H7), C8(H8), C9(H9), C10(H10), C12(H12), C13(H13), C14(H14),
 C15(H15), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22)
2.b Idealised Me refined as rotating group:
 C23(H23A,H23B,H23C)
;
_shelx_res_checksum              17578
_shelx_hkl_checksum              24073
_olex2_exptl_crystal_mounting_method 'Nylon Loop'
_olex2_submission_original_sample_id grib-eg426b_pl
_olex2_submission_special_instructions 'No special instructions were received'