Assembly of encapsulated water in hybrid bisamides: helical and zigzag water chains
Bera, Santu; Maity, Sibaprasad; Haldar, Debasish; CrystEngComm 17 (2015) 1569–; doi:10.1039/C4CE01950D

data_7219159
_publ_section_title
;
 Assembly of encapsulated water in hybrid bisamides: helical and zigzag
 water chains
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              1569
_journal_paper_doi               10.1039/C4CE01950D
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C18 H18 N4 O6, 4(H2 O)'
_chemical_formula_sum            'C18 H26 N4 O10'
_chemical_formula_weight         458.43
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_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
_audit_update_record
;
2014-12-03 deposited with the CCDC.
2014-12-18 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 100.08(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.886(7)
_cell_length_b                   19.68(2)
_cell_length_c                   16.336(19)
_cell_measurement_reflns_used    1999
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.97
_cell_measurement_theta_min      2.43
_cell_volume                     2180(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0709
_diffrn_reflns_av_sigmaI/netI    0.0618
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            8156
_diffrn_reflns_theta_full        25.57
_diffrn_reflns_theta_max         25.57
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.981
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.397
_exptl_crystal_density_meas      1.397
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.326
_exptl_crystal_size_mid          0.142
_exptl_crystal_size_min          0.072
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.430
_refine_diff_density_rms         0.094
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.295
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     196
_refine_ls_number_reflns         2051
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.295
_refine_ls_R_factor_all          0.0957
_refine_ls_R_factor_gt           0.0647
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1755
_refine_ls_wR_factor_ref         0.2005
_reflns_number_gt                1376
_reflns_number_total             2051
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce01950d2.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
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2935 2014-11-11 08:27:57Z andrius 

 Adding full bibliography for 7219156--7219159.cif.
;
_cod_original_sg_symbol_H-M      'C2/c  '
_cod_database_code               7219159
_exptl_crystal_f_000'            968.59