A highly selective, sensitive and reversible fluorescence chemosensor for Zn(2+) and its cell viability.
Saini, Anoop Kumar; Srivastava, Mansi; Sharma, Vinay; Mishra, Veenu; Mobin, Shaikh M.; Dalton transactions (Cambridge, England : 2003) 45 (2016) 3927–3935; doi:10.1039/c5dt04945h

data_7038134
_publ_section_title
;
 A highly selective, sensitive and reversible fluorescence chemosensor for
 Zn(2+) and its cell viability.
;
_journal_issue                   9
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3927
_journal_page_last               3935
_journal_paper_doi               10.1039/c5dt04945h
_journal_volume                  45
_journal_year                    2016
_chemical_formula_sum            'C31 H26 N2 O2'
_chemical_formula_weight         458.54
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-09-28 deposited with the CCDC.
2016-01-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 100.153(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   24.0691(8)
_cell_length_b                   7.9900(2)
_cell_length_c                   12.8109(4)
_cell_measurement_reflns_used    3296
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      70.8160
_cell_measurement_theta_min      6.6320
_cell_volume                     2425.11(13)
_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-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.992
_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  0.0258
_diffrn_reflns_av_unetI/netI     0.0180
_diffrn_reflns_laue_measured_fraction_full 1.000
_diffrn_reflns_laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            8070
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         71.097
_diffrn_reflns_theta_min         3.731
_exptl_absorpt_coefficient_mu    0.620
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79873
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.256
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.330
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.210
_refine_diff_density_max         0.342
_refine_diff_density_min         -0.353
_refine_diff_density_rms         0.076
_refine_ls_extinction_coef       0.0007(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.162
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     161
_refine_ls_number_reflns         2339
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.162
_refine_ls_R_factor_all          0.0935
_refine_ls_R_factor_gt           0.0881
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1842P)^2^+1.5845P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3069
_refine_ls_wR_factor_ref         0.3161
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1998
_reflns_number_total             2339
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt04945h2.cif
_cod_data_source_block           h2l
_cod_depositor_comments
'Adding full bibliography for 7038134--7038135.cif.'
_cod_database_code               7038134
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.822
_shelx_estimated_absorpt_t_max   0.881
_shelx_res_checksum              81406