Supramolecular architectures and luminescent properties of salts containing flexible bis(pyridyl) cations with aliphatic diamine spacer: Effects of inorganic anions, alkalinity and conformation of the bis(pyridyl) cations
Liu, Tong-Peng; Huo, Li-Hua; Deng, Zhao-Peng; Zhao, Hui; Gao, Shan; RSC Advances  (2014) –; doi:10.1039/C4RA05029K

data_7217704
_publ_section_title
;
 Supramolecular architectures and luminescent properties of salts
 containing flexible bis(pyridyl) cations with aliphatic diamine spacer:
 Effects of inorganic anions, alkalinity and conformation of the
 bis(pyridyl) cations
;
_journal_name_full               'RSC Advances'
_journal_paper_doi               10.1039/C4RA05029K
_journal_year                    2014
_chemical_formula_moiety         'C14 H20 N4, 2(Cl)'
_chemical_formula_sum            'C14 H20 Cl2 N4'
_chemical_formula_weight         315.24
_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                 92.400(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.2548(4)
_cell_length_b                   4.8972(4)
_cell_length_c                   31.167(3)
_cell_measurement_temperature    295(2)
_cell_volume                     801.34(12)
_computing_cell_refinement
;
CrysAlis Pro (Agilent, 2013)
;
_computing_data_collection
;
CrysAlis Pro (Agilent, 2013)
;
_computing_data_reduction
;
CrysAlis Pro (Agilent, 2013)
;
_computing_molecular_graphics    '(K. Brandenburg, Diamond 3.1, 2009)'
_computing_publication_material  '(K. Brandenburg, Diamond 3.1, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.1954
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0472
_diffrn_reflns_av_sigmaI/netI    0.0844
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       2
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            2152
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         3.93
_exptl_absorpt_coefficient_mu    0.401
_exptl_absorpt_correction_T_max  0.9460
_exptl_absorpt_correction_T_min  0.9205
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlis Pro (Agilent, 2013)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             332
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.474
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.049
_refine_ls_extinction_coef       0.071(8)
_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   1.004
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     98
_refine_ls_number_reflns         1855
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.0783
_refine_ls_R_factor_gt           0.0679
_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^)+(0.0009P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0904
_refine_ls_wR_factor_ref         0.1055
_reflns_number_gt                1172
_reflns_number_total             1855
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra05029k2.cif
_cod_data_source_block           complex2
_cod_original_cell_volume        801.33(12)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7217704