Chemistry and supramolecular chemistry of chromium horseshoes.
Rancan, Marzio; Newton, Graham N; Muryn, Christopher A; Pritchard, Robin G; Timco, Grigore A; Cronin, Leroy; Winpenny, Richard E P; Chemical communications (Cambridge, England)  (2008) 1560–1562; doi:10.1039/b718282a

data_7103012
_publ_section_title
;
 Chemistry and supramolecular chemistry of chromium horseshoes.
;
_journal_issue                   13
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1560
_journal_page_last               1562
_journal_paper_doi               10.1039/b718282a
_journal_year                    2008
_chemical_formula_sum            'C78 H162 Cr3 F8 N3 O12'
_chemical_formula_weight         1642.11
_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                71.765(5)
_cell_angle_beta                 85.874(5)
_cell_angle_gamma                72.304(5)
_cell_formula_units_Z            2
_cell_length_a                   16.835(5)
_cell_length_b                   17.057(5)
_cell_length_c                   18.219(5)
_cell_measurement_reflns_used    7191
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.5925
_cell_measurement_theta_min      2.6401
_cell_volume                     4732(2)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.28cycle4 beta (release 11-11-2005 CrysAlis171 .NET)
(compiled Nov 11 2005,15:50:43)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.28cycle4 beta (release 11-11-2005 CrysAlis171 .NET)
(compiled Nov 11 2005,15:50:43)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.28cycle4 beta (release 11-11-2005 CrysAlis171 .NET)
(compiled Nov 11 2005,15:50:43)
;
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3367
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Oxford Diffraction XCalibur 2'
_diffrn_measurement_method       'phi and omega'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0474
_diffrn_reflns_av_sigmaI/netI    0.0930
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            24609
_diffrn_reflns_theta_full        21.99
_diffrn_reflns_theta_max         21.99
_diffrn_reflns_theta_min         3.51
_exptl_absorpt_coefficient_mu    0.406
_exptl_absorpt_correction_T_max  0.9606
_exptl_absorpt_correction_T_min  0.8229
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.4 (release 27-04-2006 CrysAlis171 .NET)
(compiled Apr 27 2007,17:53:11)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            Green
_exptl_crystal_density_diffrn    1.152
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rhombohedral
_exptl_crystal_F_000             1782
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.865
_refine_diff_density_min         -0.568
_refine_diff_density_rms         0.101
_refine_ls_extinction_coef       0.0
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     953
_refine_ls_number_reflns         11404
_refine_ls_number_restraints     84
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.1461
_refine_ls_R_factor_gt           0.0892
_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^)+(0.1850P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2409
_refine_ls_wR_factor_ref         0.2909
_reflns_number_gt                6440
_reflns_number_total             11404
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b718282a.txt
_cod_data_source_block           orepw719pb1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7103012