Swift photoswitching in a binuclear Zn(ii) metallacycle relative to a salen-type ligand.
Kumar, Amit; Pandey, Rampal; Gupta, Rakesh Kumar; Mishra, Veenu; Mobin, Shaikh M.; Pandey, Daya Shankar; Dalton transactions (Cambridge, England : 2003) 43 (2014) 6365–6376; doi:10.1039/c4dt00248b

data_7030002
_publ_section_title
;
 Swift photoswitching in a binuclear Zn(ii) metallacycle relative to a
 salen-type ligand.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6365
_journal_page_last               6376
_journal_paper_doi               10.1039/c4dt00248b
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         '2(C35 H28 N6 O2 Zn),1.2(C H2 Cl2)'
_chemical_formula_sum            'C71.2 H58.4 Cl2.4 N12 O4 Zn2'
_chemical_formula_weight         1361.92
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_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                82.851(6)
_cell_angle_beta                 68.389(6)
_cell_angle_gamma                77.788(6)
_cell_formula_units_Z            2
_cell_length_a                   13.0742(8)
_cell_length_b                   15.6117(12)
_cell_length_c                   17.5354(11)
_cell_measurement_reflns_used    7582
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      71.4870
_cell_measurement_theta_min      4.1470
_cell_volume                     3248.0(4)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'OXFORD DIFFRACTION SUPER NOVA'
_diffrn_measurement_method       \w/q-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Micro-Focus (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0506
_diffrn_reflns_av_sigmaI/netI    0.0618
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            23807
_diffrn_reflns_theta_full        72.87
_diffrn_reflns_theta_max         72.87
_diffrn_reflns_theta_min         3.70
_exptl_absorpt_coefficient_mu    2.296
_exptl_absorpt_correction_T_max  0.6442
_exptl_absorpt_correction_T_min  0.5179
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.393
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1405.2
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.21
_refine_diff_density_max         1.363
_refine_diff_density_min         -0.958
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     850
_refine_ls_number_reflns         12617
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0994
_refine_ls_R_factor_gt           0.0789
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.1420P)^2^+1.5000P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2216
_refine_ls_wR_factor_ref         0.2456
_reflns_number_gt                9048
_reflns_number_total             12617
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00248b2.cif
_cod_data_source_block           1
_cod_database_code               7030002