Ion-triggered spring-like motion of a double helicate accompanied by anisotropic twisting.
Miwa, Kazuhiro; Furusho, Yoshio; Yashima, Eiji; Nature chemistry 2 (2010) 444–449; doi:10.1038/nchem.649

data_1508034
_publ_section_title
;
 Ion-triggered spring-like motion of a double helicate accompanied by
 anisotropic twisting.
;
_journal_issue                   6
_journal_name_full               'Nature chemistry'
_journal_page_first              444
_journal_page_last               449
_journal_paper_doi               10.1038/nchem.649
_journal_volume                  2
_journal_year                    2010
_chemical_formula_sum            'C126 H142 B2 N7 Na O8'
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; 
 ? 
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_cell_length_b                   27.148(4)
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_computing_cell_refinement       'Bruker SMART'
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_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
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_diffrn_reflns_limit_l_min       -35
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_diffrn_reflns_theta_full        28.35
_diffrn_reflns_theta_max         28.35
_diffrn_reflns_theta_min         1.08
_exptl_absorpt_coefficient_mu    0.074
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_exptl_crystal_colour            colorless
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[s^2^(Fo^2^)+(0.1246P)^2^+3.4254P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_refine_ls_wR_factor_ref         0.2143
_reflns_number_gt                19203
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_cod_data_source_file            nchem.649-s3.cif
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_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        11151(3)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1508034