The nano-scale molecule with the longest delocalized metal-metal bonds: linear heptacobalt(II) metal string complexes [Co7(micro7-L)4X2].
Wang, Wen-Zhen; Ismayilov, Rayyat Huseyn; Lee, Gene-Hsiang; Liu, Isiah Po-Chun; Yeh, Chen-Yu; Peng, Shie-Ming; Dalton transactions (Cambridge, England : 2003)  (2007) 830–839; doi:10.1039/b614661a

data_7005000
_publ_section_title
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 The nano-scale molecule with the longest delocalized metal-metal
 bonds: linear heptacobalt(II) metal string complexes
 [Co7(micro7-L)4X2].
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              830
_journal_page_last               839
_journal_paper_doi               10.1039/b614661a
_journal_year                    2007
_chemical_formula_sum            'C98 H106 Co7 N38 O S2'
_chemical_formula_weight         2308.84
_chemical_name_systematic
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?
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_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 109.727(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   30.6410(10)
_cell_length_b                   16.2874(6)
_cell_length_c                   22.2876(7)
_cell_measurement_reflns_used    2354
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.00
_cell_volume                     10470.1(6)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0980
_diffrn_reflns_av_sigmaI/netI    0.1184
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            28398
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.41
_exptl_absorpt_coefficient_mu    1.188
_exptl_absorpt_correction_T_max  0.955
_exptl_absorpt_correction_T_min  0.713
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            dark-green
_exptl_crystal_density_diffrn    1.465
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             4756
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.316
_refine_diff_density_min         -0.652
_refine_diff_density_rms         0.259
_refine_ls_extinction_coef       0.00042(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     593
_refine_ls_number_reflns         9230
_refine_ls_number_restraints     19
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.2063
_refine_ls_R_factor_gt           0.0881
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1541P)^2^+44.9520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2592
_refine_ls_wR_factor_ref         0.3302
_reflns_number_gt                3870
_reflns_number_total             9230
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b614661a.txt
_cod_data_source_block           ic11154
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7005000