Self-assembled organic tubular host for van der Waals guest inclusion
Saha, Binoy K.; Nangia, Ashwini; CrystEngComm 8 (2006) 440–; doi:10.1039/b602000n

data_7203311
_publ_section_title
;
 Self-assembled organic tubular host for van der Waals guest inclusion
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              440
_journal_paper_doi               10.1039/b602000n
_journal_volume                  8
_journal_year                    2006
_chemical_formula_moiety         'C18 H9 Cl3 N6 O3, 0.55(C H3 N O2)'
_chemical_formula_sum            'C18.55 H10.65 Cl3 N6.55 O4.1'
_chemical_formula_weight         497.05
_chemical_name_common
'2,4,6-tris(2-chloro-3-pyridyloxy)-1,3,5-triazine, nitromethane'
_chemical_name_systematic
;
2,4,6-tris(2-chloro-3-pyridyloxy)-1,3,5-triazine, nitromethane
;
_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                93.247(2)
_cell_angle_beta                 92.607(2)
_cell_angle_gamma                90.350(2)
_cell_formula_units_Z            2
_cell_length_a                   6.3045(7)
_cell_length_b                   10.1891(11)
_cell_length_c                   17.0142(19)
_cell_measurement_reflns_used    1701
_cell_measurement_temperature    298(2)
_cell_volume                     1090.0(2)
_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) and SQUEEZE'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0383
_diffrn_reflns_av_sigmaI/netI    0.0966
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            7576
_diffrn_reflns_theta_full        26.08
_diffrn_reflns_theta_max         26.08
_diffrn_reflns_theta_min         1.20
_exptl_absorpt_coefficient_mu    0.452
_exptl_absorpt_correction_T_max  0.9734
_exptl_absorpt_correction_T_min  0.9231
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS - Bruker Nonius area detector scaling and absorption correction - V2.10'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.514
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             468
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.286
_refine_diff_density_min         -0.231
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.882
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         4293
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.882
_refine_ls_R_factor_all          0.1356
_refine_ls_R_factor_gt           0.0586
_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^)+(0.0507P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1061
_refine_ls_wR_factor_ref         0.1229
_reflns_number_gt                2051
_reflns_number_total             4293
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b602000n.txt
_cod_data_source_block           nitromethane-s
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7203311