Conformer independent heterodimerisation of linear arrays using three hydrogen bonds
McGhee, Andrea M.; Kilner, Colin; Wilson, Andrew J.; Chemical Communications (Cambridge, United Kingdom)  (2008) 344–346; doi:10.1039/b712603d

data_7113114
_publ_section_title
;
 Conformer independent heterodimerisation of linear arrays using three
 hydrogen bonds
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   3
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              344
_journal_page_last               346
_journal_paper_doi               10.1039/b712603d
_journal_year                    2008
_chemical_formula_moiety         '4(C12 H11 N3 O2), 3(C H2 Cl2)'
_chemical_formula_sum            'C51 H50 Cl6 N12 O8'
_chemical_formula_weight         1171.73
_chemical_name_common            Amidoisocytosine
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                101.7370(8)
_cell_angle_beta                 100.6000(8)
_cell_angle_gamma                96.1140(13)
_cell_formula_units_Z            1
_cell_length_a                   10.5748(2)
_cell_length_b                   11.2109(2)
_cell_length_c                   11.8373(3)
_cell_measurement_reflns_used    13823
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     1335.37(5)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1996)'
_computing_data_collection       COLLECT
_computing_data_reduction
;
DENZO-SMN and COLLECT (Otwinowski & Minor, 1996)
;
_computing_molecular_graphics    'ORTEP-III Version 1.08 (Farrugia, 2005)'
_computing_publication_material  'local program'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
Nonius KappaCCD area-detector diffractometer
;
_diffrn_measurement_method
;
phi and omega scans to fill the asymmetric unit
;
_diffrn_radiation_detector       'CCD plate'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1037
_diffrn_reflns_av_sigmaI/netI    0.0612
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            25222
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.38
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.388
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.457
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             606
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.22
_refine_diff_density_max         1.314
_refine_diff_density_min         -1.283
_refine_diff_density_rms         0.093
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         5222
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.1071
_refine_ls_R_factor_gt           0.0799
_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^)+(0.1090P)^2^+2.4550P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2069
_refine_ls_wR_factor_ref         0.2314
_reflns_number_gt                3827
_reflns_number_total             5222
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7102819
_cod_data_source_file            b712603d.txt
_cod_data_source_block           compound_3
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7113114