Water Tape Assembled in 1,10-Bis(2-pyrazinylcarbonyl)-1,4,7,10-tetraazadecane via H-Bonding and π−π Stacking
Shi, Xue-Fang; Zhang, Wen-Qin; Crystal Growth & Design 7 (2007) 595–; doi:10.1021/cg0606390

data_4503990
_publ_section_title
;
 Water Tape Assembled in
 1,10-Bis(2-pyrazinylcarbonyl)-1,4,7,10-tetraazadecane via H-Bonding and
 \p&#x2212;\p Stacking
;
_journal_issue                   4
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              595
_journal_paper_doi               10.1021/cg0606390
_journal_volume                  7
_journal_year                    2007
_chemical_formula_sum            'C16 H34 N8 O8'
_chemical_formula_weight         466.51
_chemical_melting_point          410
_chemical_name_systematic        ?
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 93.143(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.6039(9)
_cell_length_b                   6.8600(14)
_cell_length_c                   38.115(8)
_cell_measurement_reflns_used    1594
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      22.83
_cell_measurement_theta_min      3.02
_cell_volume                     1202.0(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      294(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0457
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       47
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            6506
_diffrn_reflns_theta_full        26.33
_diffrn_reflns_theta_max         26.33
_diffrn_reflns_theta_min         1.07
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  0.9897
_exptl_absorpt_correction_T_min  0.9624
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             500
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.222
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2449
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.1023
_refine_ls_R_factor_gt           0.0596
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0541P)^2^+0.8866P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1397
_refine_ls_wR_factor_ref         0.1574
_reflns_number_gt                1520
_reflns_number_total             2449
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0606390si20061209_093240.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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4503990