Aromatic single-walled organic nanotubes self-assembled from NH-bridged azacalix[2]triptycene[2]pyridine
Min Xue; Chuan-Feng Chen; Chem.Commun. 47 (2011) 2318–; doi:10.1039/c0cc04580b

data_7106000
_publ_section_title
;
 Aromatic single-walled organic nanotubes self-assembled from NH-bridged
 azacalix[2]triptycene[2]pyridine
;
_journal_name_full               Chem.Commun.
_journal_page_first              2318
_journal_paper_doi               10.1039/c0cc04580b
_journal_volume                  47
_journal_year                    2011
_chemical_formula_sum            'C54 H30 N10'
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_atom_sites_solution_primary     direct
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_cell_angle_alpha                65.87(3)
_cell_angle_beta                 80.27(3)
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_cell_length_b                   20.112(4)
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_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.00
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_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
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_computing_molecular_graphics    'XP in Siemens SHELXTL (Sheldrick, 1994)'
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_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
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_exptl_absorpt_coefficient_mu    0.048
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    0.782
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
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_platon_squeeze_details
;
;
_refine_diff_density_max         0.305
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_refine_ls_restrained_S_all      0.916
_refine_ls_R_factor_all          0.0988
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_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^)+(0.1023P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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