A subtle interplay of C‒H hydrogen bonds in complexation of anions of varied dimensionality by a nitro functionalized tripodal podand
Dey, Sandeep Kumar; Ojha, Bimlesh; Das, Gopal; CrystEngComm 13 (2011) 269–; doi:10.1039/c0ce00316f

data_7205276
_publ_section_title
;
 A subtle interplay of C--H hydrogen bonds in complexation of anions of
 varied dimensionality by a nitro functionalized tripodal podand
;
_journal_issue                   1
_journal_name_full               CrystEngComm
_journal_page_first              269
_journal_paper_doi               10.1039/c0ce00316f
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C24 H25 N4 O9, Cl'
_chemical_formula_sum            'C24 H25 Cl N4 O9'
_chemical_formula_weight         548.93
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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                98.90(4)
_cell_angle_beta                 102.77(3)
_cell_angle_gamma                105.84(5)
_cell_formula_units_Z            2
_cell_length_a                   7.475(6)
_cell_length_b                   13.365(10)
_cell_length_c                   13.784(10)
_cell_measurement_reflns_used    1270
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      18.45
_cell_measurement_theta_min      3.27
_cell_volume                     1257.6(17)
_computing_cell_refinement       'Bruker Smart'
_computing_data_collection       'Bruker Smart'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and onega scans'
_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  0.1018
_diffrn_reflns_av_sigmaI/netI    0.1515
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8173
_diffrn_reflns_theta_full        23.56
_diffrn_reflns_theta_max         23.56
_diffrn_reflns_theta_min         1.56
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.941
_exptl_absorpt_correction_T_min  0.924
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.450
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             572
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.236
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.058
_refine_ls_extinction_coef       0.0078(15)
_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   0.810
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     348
_refine_ls_number_reflns         3172
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.810
_refine_ls_R_factor_all          0.1069
_refine_ls_R_factor_gt           0.0518
_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^)+(0.0405P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1101
_refine_ls_wR_factor_ref         0.1240
_reflns_number_gt                3570
_reflns_number_total             3753
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CE00316F.TXT
_cod_data_source_block           nitro-HCl
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7205276