Microwave-assisted solvent-dependent reaction: chemoselective synthesis of quinoxalin-2(1H)-ones, benzo[d]imidazoles and dipeptides.
Wang, Shu-Liang; Ding, Jie; Jiang, Bo; Gao, Yuan; Tu, Shu-Jiang; ACS combinatorial science 13 (2011) 572–577; doi:10.1021/co2001247

data_4501446
_publ_section_title
;
 Microwave-assisted solvent-dependent reaction: chemoselective synthesis
 of quinoxalin-2(1H)-ones, benzo[d]imidazoles and dipeptides.
;
_journal_issue                   5
_journal_name_full               'ACS combinatorial science'
_journal_page_first              572
_journal_page_last               577
_journal_paper_doi               10.1021/co2001247
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C22 H16 Cl N3 O'
_chemical_formula_weight         373.83
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_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            16
_cell_length_a                   22.9061(19)
_cell_length_b                   22.9061(19)
_cell_length_c                   14.7776(13)
_cell_measurement_reflns_used    1056
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      18.17
_cell_measurement_theta_min      2.419
_cell_volume                     7753.7(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1172
_diffrn_reflns_av_sigmaI/netI    0.1221
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            15937
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.9790
_exptl_absorpt_correction_T_min  0.9102
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3104
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.209
_refine_diff_density_min         -0.184
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.952
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3423
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.952
_refine_ls_R_factor_all          0.1530
_refine_ls_R_factor_gt           0.0491
_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^)+(0.0004P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0718
_refine_ls_wR_factor_ref         0.0853
_reflns_number_gt                1336
_reflns_number_total             3423
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            co2001247_si_002.cif
_cod_data_source_block           110518e
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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        7753.6(11)
_cod_original_sg_symbol_H-M      I4(1)/a
_cod_database_code               4501446