Fluorescent Zinc(II) Complex Exhibiting "On-Off-On" Switching Toward Cu2+ and Ag+ Ions
Rampal Pandey; Prashant Kumar; Ashish Kumar Singh; Mohammad Shahid; Pei-zhou Li; Sanjay Kumar Singh; Qiang Xu; Arvind Misra; Daya Shankar Pandey; Inorganic Chemistry 50 (2011) 3189–3197; doi:10.1021/ic1018086

data_4324831
_publ_section_title
;
 Fluorescent Zinc(II) Complex Exhibiting "On-Off-On" Switching Toward Cu2+
 and Ag+ Ions
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3189
_journal_page_last               3197
_journal_paper_doi               10.1021/ic1018086
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C23 H22 Cu N2 O3'
_chemical_formula_weight         437.97
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 103.09(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.2097(16)
_cell_length_b                   17.960(4)
_cell_length_c                   14.016(3)
_cell_measurement_temperature    293(2)
_cell_volume                     2012.9(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.1342
_diffrn_reflns_av_sigmaI/netI    0.1141
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            18464
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    1.112
_exptl_absorpt_correction_T_max  0.7315
_exptl_absorpt_correction_T_min  0.6903
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_F_000             908
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.549
_refine_diff_density_min         -0.363
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     273
_refine_ls_number_reflns         4598
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.2012
_refine_ls_R_factor_gt           0.1005
_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^)+(0.0163P)^2^+4.8377P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1364
_refine_ls_wR_factor_ref         0.1686
_reflns_number_gt                2225
_reflns_number_total             4598
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic1018086_si_002_3.cif
_cod_data_source_block           2
_cod_original_cell_volume        2013.0(7)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4324831