Proton-controllable fluorescent switch based on interconversion of polynuclear and dinuclear copper(II) complexes.
Liu, Hsueh-Ju; Hung, Yu-Hsin; Chou, Chang-Chuan; Su, Chan-Cheng; Chemical communications (Cambridge, England)  (2007) 495–497; doi:10.1039/b613583h

data_7101674
_publ_section_title
;
 Proton-controllable fluorescent switch based on interconversion of
 polynuclear and dinuclear copper(II) complexes.
;
_journal_issue                   5
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              495
_journal_page_last               497
_journal_paper_doi               10.1039/b613583h
_journal_year                    2007
_chemical_formula_moiety         'C40 H36 Cl4 Cu2 N8 O20'
_chemical_formula_sum            'C40 H36 Cl4 Cu2 N8 O20'
_chemical_formula_weight         1217.65
_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                 110.58
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.9020(7)
_cell_length_b                   17.764(2)
_cell_length_c                   15.5030(16)
_cell_measurement_reflns_used    7425
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.037
_cell_volume                     2810.7(5)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 19'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.941
_diffrn_measured_fraction_theta_max 0.941
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_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  0.1255
_diffrn_reflns_av_sigmaI/netI    0.1718
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            11329
_diffrn_reflns_theta_full        25.27
_diffrn_reflns_theta_max         25.27
_diffrn_reflns_theta_min         2.30
_exptl_absorpt_coefficient_mu    1.022
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.439
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1236
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.980
_refine_diff_density_min         -0.550
_refine_diff_density_rms         0.122
_refine_ls_extinction_coef       0.0011(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.759
_refine_ls_hydrogen_treatment    fixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         4794
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.759
_refine_ls_R_factor_all          0.1580
_refine_ls_R_factor_gt           0.0814
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2138
_refine_ls_wR_factor_ref         0.2676
_reflns_number_gt                2309
_reflns_number_total             4794
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b613583h.txt
_cod_data_source_block           6117
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7101674