Organic Crystal Engineering with Piperazine-2,5-diones. 4. Crystal Packing of Piperazinediones Derived from 2-Amino-7-cyano-4-methoxyindan-2-carboxylic Acid
Jagadish, Bhumasamudram; Carducci, Michael D.; Bosshard, Christian; Günter, Peter; Margolis, Jason I.; Williams, Lawrence J.; Mash, Eugene A.; Crystal Growth & Design 3 (2003) 811–; doi:10.1021/cg0340751

data_4505742
_publ_section_title
;
 Organic Crystal Engineering with Piperazine-2,5-diones. 4. Crystal
 Packing of Piperazinediones Derived from
 2-Amino-7-cyano-4-methoxyindan-2-carboxylic Acid
;
_journal_issue                   5
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              811
_journal_paper_doi               10.1021/cg0340751
_journal_volume                  3
_journal_year                    2003
_chemical_formula_moiety         'C24 H20 N4 O4, 3(C2 H6 O S)'
_chemical_formula_structural     'C30 H38 N4 O7 S3'
_chemical_formula_sum            'C30 H38 N4 O7 S3'
_chemical_formula_weight         662.82
_chemical_melting_point          331.0(10)
_chemical_name_systematic
; 
(R,S)-Cyclo-bis(2-amino-7-cyanoindan-4-methoxy-2-carboxylic acid)  
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 110.286(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.156(3)
_cell_length_b                   8.8635(10)
_cell_length_c                   18.640(2)
_cell_measurement_reflns_used    3023
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      26.411
_cell_measurement_theta_min      2.5165
_cell_volume                     3278.5(7)
_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      170(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_measurement_specimen_support 'glass fiber'
_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  0.0758
_diffrn_reflns_av_sigmaI/netI    0.0591
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            17809
_diffrn_reflns_theta_full        26.41
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         2.05
_diffrn_standards_decay_%        -.05
_diffrn_standards_interval_count 1818
_diffrn_standards_number         58
_exptl_absorpt_coefficient_mu    0.277
_exptl_absorpt_correction_T_max  0.9876
_exptl_absorpt_correction_T_min  0.9340
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.343
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cube
_exptl_crystal_F_000             1400
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.260
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.970
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         3360
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.970
_refine_ls_R_factor_all          0.0782
_refine_ls_R_factor_gt           0.0449
_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^)+(0.0661P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1118
_refine_ls_wR_factor_ref         0.1242
_reflns_number_gt                2121
_reflns_number_total             3360
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0340751si20030502_082459.cif
_cod_data_source_block           bj12m
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '330-332' was changed to '331.0(10)'
- 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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:
'_symmetry_space_group_number' data item was removed -- it should
have been renamed to '_space_group_IT_number' as specified in the
replacement file
'/home/antanas/src/cod-tools/trunk/data/replacement-values/replacement_tags.lst',
but the replacement data item was already present in the data block
and had the same value as the '_symmetry_space_group_number' data
item.

Automatic conversion script
Id: cif_correct_tags 4998 2017-03-02 13:24:31Z antanas 
;
_cod_original_cell_volume        3278.6(7)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4505742