Crystal engineering with a purine rare tautomer: structures and luminescence properties
Khanna, Shruti; Verma, Sandeep; CrystEngComm 16 (2014) 6680–; doi:10.1039/c4ce00611a

data_7215868
_publ_section_title
;
 Crystal engineering with a purine rare tautomer: structures and
 luminescence properties
;
_journal_issue                   29
_journal_name_full               CrystEngComm
_journal_page_first              6680
_journal_paper_doi               10.1039/c4ce00611a
_journal_volume                  16
_journal_year                    2014
_chemical_formula_sum            'C13 H13 Cd0.5 Cl1.5 N5 O2.5'
_chemical_formula_weight         388.66
_chemical_name_systematic
;
 ?
;
_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                70.4550(10)
_cell_angle_beta                 75.2480(10)
_cell_angle_gamma                89.5710(10)
_cell_formula_units_Z            4
_cell_length_a                   10.1883(6)
_cell_length_b                   10.9694(7)
_cell_length_c                   15.1248(9)
_cell_measurement_reflns_used    5278
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      4.1
_cell_volume                     1534.82(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_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  0.0265
_diffrn_reflns_av_sigmaI/netI    0.0541
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7936
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         4.09
_exptl_absorpt_coefficient_mu    1.028
_exptl_absorpt_correction_T_max  0.8366
_exptl_absorpt_correction_T_min  0.7979
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North et al., 1968)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.682
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             782
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.267
_refine_diff_density_min         -1.705
_refine_diff_density_rms         0.164
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     401
_refine_ls_number_reflns         5278
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0675
_refine_ls_R_factor_gt           0.0570
_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^)+(0.1013P)^2^+4.5694P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1575
_refine_ls_wR_factor_ref         0.1727
_reflns_number_gt                4483
_reflns_number_total             5278
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00611a2.cif
_cod_data_source_block           15apram
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7215866--7215869.cif.
;
_cod_original_formula_sum        'C13 H13 Cd0.50 Cl1.50 N5 O2.50'
_cod_database_code               7215868