N9 substituent mediated structural tuning of copper‒purine complexes: chelate effect and thin film studies
Avasthi, Ilesha; Khanna, Shruti; Tripathi, Santosh K.; Verma, Sandeep; CrystEngComm  (2017) –; doi:10.1039/C7CE01017F

data_7228799
_publ_section_title
;
 N9 substituent mediated structural tuning of copper--purine complexes:
 chelate effect and thin film studies
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/C7CE01017F
_journal_year                    2017
_chemical_formula_sum            'C8 H9 Cl5 Cu2 N4 O'
_chemical_formula_weight         481.52
_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
_audit_update_record
;
2016-10-04 deposited with the CCDC.
2017-07-10 downloaded from the CCDC.
;
_cell_angle_alpha                90.000
_cell_angle_beta                 95.488(5)
_cell_angle_gamma                90.000
_cell_formula_units_Z            4
_cell_length_a                   6.089(4)
_cell_length_b                   14.910(5)
_cell_length_c                   16.172(6)
_cell_measurement_reflns_used    2571
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      4.2
_cell_volume                     1461.5(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker D8 Advance diffractometer'
_diffrn_measurement_method       \q/2\q
_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  0.0430
_diffrn_reflns_av_sigmaI/netI    0.0357
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            11425
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         4.24
_exptl_absorpt_coefficient_mu    3.820
_exptl_absorpt_correction_T_max  0.5305
_exptl_absorpt_correction_T_min  0.4870
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North et al., 1968)'
_exptl_crystal_colour            blue-green
_exptl_crystal_density_diffrn    2.188
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block-type
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.534
_refine_diff_density_min         -0.844
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         2571
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0387
_refine_ls_R_factor_gt           0.0276
_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^)+(0.0303P)^2^+1.2635P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0625
_refine_ls_wR_factor_ref         0.0659
_reflns_number_gt                2140
_reflns_number_total             2571
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7ce01017f2.cif
_cod_data_source_block           27augf_0m
_cod_original_cell_volume        1461.5(14)
_cod_database_code               7228799