Dynamic Devices. Shape Switching and Substrate Binding in Ion-Controlled Nanomechanical Molecular Tweezers
Anne Petitjean; Richard G. Khoury; Nathalie Kyritsakas; Jean-Marie Lehn; Journal of the American Chemical Society 126 (2004) 6637–6647; doi:10.1021/ja031915r

data_4112595
_publ_section_title
;
 Dynamic Devices. Shape Switching and Substrate Binding in Ion-Controlled
 Nanomechanical Molecular Tweezers
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6637
_journal_page_last               6647
_journal_paper_doi               10.1021/ja031915r
_journal_volume                  126
_journal_year                    2004
_chemical_formula_moiety         'C55 H31 N7 O7'
_chemical_formula_sum            'C55 H31 N7 O7'
_chemical_formula_weight         901.90
_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'
_cell_angle_alpha                80.867(5)
_cell_angle_beta                 80.186(5)
_cell_angle_gamma                77.429(5)
_cell_formula_units_Z            2
_cell_length_a                   9.3171(2)
_cell_length_b                   11.5016(3)
_cell_length_c                   20.4556(7)
_cell_measurement_temperature    173
_cell_volume                     2091.27(11)
_computing_publication_material  CIFGEN_IN_OpenMoleN_(_1997)
_computing_structure_refinement  LSFM_OpenMoleN_(_1997)
_computing_structure_solution    direct_methods_(SIR,_Burla_et_al.,_1989)
_diffrn_ambient_temperature      173
_diffrn_measurement_details
;
  14258 reflections were collected using program Collect
 ("Collect" Data collection software, Nonius B.V., 1998)
 The conditions were as follow : crystal to detector distance =  36. mm.
 Scan angle =  2.0 deg 1 scans of   60 sec per frame.
 Data collection was divided into  2 set(s)
 with the following starting angles and number of frames :

 Set 1 Theta =    6.30 Omega =    0.00 Kappa =    0.00  107 frames
 Set 2 Theta =   -4.80 Kappa = -169.00 Phi   =    0.00   25 frames
 Friedel pairs were averaged. Internal R = 0.04
;
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\p scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           Mo-K\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.040
_diffrn_reflns_av_sigmaI/netI    0.333
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            14258
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         2.5
_diffrn_source                   xray_tube
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.43
_exptl_crystal_density_method    none
_exptl_crystal_description       prism
_exptl_crystal_F_000             932
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.814
_refine_diff_density_min         -0.815
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.395
_refine_ls_goodness_of_fit_ref   1.123
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_constraints    6
_refine_ls_number_parameters     613
_refine_ls_number_reflns         3772
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.148
_refine_ls_R_factor_gt           0.071
_refine_ls_shift/esd_mean        0.000
_refine_ls_shift/su_max          0.008
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_all         0.246
_refine_ls_wR_factor_ref         0.083
_reflns_number_gt                3772
_reflns_number_total             9514
_reflns_threshold_expression     >3.0\s(I)
_cod_data_source_file            ja031915rsi20031223_050912.cif
_cod_data_source_block           st826
_cod_original_cell_volume        2091.3(1)
_cod_database_code               4112595