Synthesis of a [2]rotaxane incorporating a Ni(II)-salen moiety: evidence of ring-opening-and-closing protocol.
Yoon, Il; Narita, Mamiko; Goto, Midori; Shimizu, Toshimi; Asakawa, Masumi; Organic letters 8 (2006) 2341–2344; doi:10.1021/ol060661m

data_1505990
_publ_section_title
;
 Synthesis of a [2]rotaxane incorporating a Ni(II)-salen moiety: evidence
 of ring-opening-and-closing protocol.
;
_journal_issue                   11
_journal_name_full               'Organic letters'
_journal_page_first              2341
_journal_page_last               2344
_journal_paper_doi               10.1021/ol060661m
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C30 H34 Cl N2 Na Ni O13'
_chemical_formula_weight         747.74
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 112.56
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.1529(10)
_cell_length_b                   30.119(3)
_cell_length_c                   9.3248(8)
_cell_measurement_reflns_used    23228
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      1.35
_cell_volume                     3152.0(5)
_computing_cell_refinement       'SAINT (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SHELXTL (Bruker, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    SHELXTL
_diffrn_ambient_temperature      183(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  0.0204
_diffrn_reflns_av_sigmaI/netI    0.0233
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       40
_diffrn_reflns_limit_k_min       -38
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            23228
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.35
_exptl_absorpt_coefficient_mu    0.786
_exptl_absorpt_correction_T_max  0.9256
_exptl_absorpt_correction_T_min  0.7440
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1998)'
_exptl_crystal_colour            red-brown
_exptl_crystal_density_diffrn    1.576
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1552
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.761
_refine_diff_density_min         -0.530
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         7773
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0398
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0616P)^2^+0.7970P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0987
_refine_ls_wR_factor_ref         0.1035
_reflns_number_gt                6662
_reflns_number_total             7773
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol060661msi20060322_110000.cif
_cod_data_source_block           monomer
_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.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' 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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1505990