Proton effects on diazafluorene derivatives with sulfur-rich substituents, a structural, spectroscopic and theoretical study.
Yu, Lei; Zhu, Qin-Yu; Zhang, Yong; Lei, Zhi-Xin; Niu, Gai-Yan; Dai, Jie; The journal of physical chemistry. A 112 (2008) 13672–13678; doi:10.1021/jp8073283

data_1504412
_publ_section_title
;
 Proton effects on diazafluorene derivatives with sulfur-rich
 substituents, a structural, spectroscopic and theoretical study.
;
_journal_issue                   51
_journal_name_full               'The journal of physical chemistry. A'
_journal_page_first              13672
_journal_page_last               13678
_journal_paper_doi               10.1021/jp8073283
_journal_volume                  112
_journal_year                    2008
_chemical_formula_moiety         'C18 H16 N2 S4'
_chemical_formula_sum            'C18 H16 N2 S4'
_chemical_formula_weight         388.57
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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                106.546(3)
_cell_angle_beta                 106.556(3)
_cell_angle_gamma                103.482(3)
_cell_formula_units_Z            4
_cell_length_a                   9.894(3)
_cell_length_b                   13.952(4)
_cell_length_c                   14.722(4)
_cell_measurement_reflns_used    5826
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      25.3
_cell_measurement_theta_min      3.0
_cell_volume                     1754.7(9)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalStructure
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku Mercury'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0511
_diffrn_reflns_av_sigmaI/netI    0.0755
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            17328
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         3.02
_exptl_absorpt_coefficient_mu    0.544
_exptl_absorpt_correction_T_max  0.957
_exptl_absorpt_correction_T_min  0.698
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.471
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.342
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.147
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     438
_refine_ls_number_reflns         6381
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.147
_refine_ls_R_factor_all          0.0871
_refine_ls_R_factor_gt           0.0619
_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^)+(0.0280P)^2^+1.4132P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1032
_refine_ls_wR_factor_ref         0.1125
_reflns_number_gt                4971
_reflns_number_total             6381
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp8073283_si_002.cif
_cod_data_source_block           shelxl
_cod_original_cell_volume        1754.7(8)
_cod_database_code               1504412