Strong reducing agents containing dimolybdenum Mo2(4+) units and their oxidized cations with Mo2(5+/6+) cores stabilized by bicyclic guanidinate anions with a seven-membered ring.
Cotton, F. Albert; Murillo, Carlos A.; Wang, Xiaoping; Wilkinson, Chad C.; Dalton transactions (Cambridge, England : 2003)  (2006) 4623–4631; doi:10.1039/b608422b

data_7007664
_publ_section_title
;
 Strong reducing agents containing dimolybdenum Mo2(4+) units and their
 oxidized cations with Mo2(5+/6+) cores stabilized by bicyclic
 guanidinate anions with a seven-membered ring.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4623
_journal_page_last               4631
_journal_paper_doi               10.1039/b608422b
_journal_year                    2006
_chemical_formula_moiety         'C6 H13 I N2 S'
_chemical_formula_sum            'C6 H13 I N2 S'
_chemical_formula_weight         272.14
_chemical_name_common            2-methylmercapto-delta$2!-1,3-diazacycloheptane
_chemical_name_systematic
;
2-methylmercapto-delta^2^-1,3-diazacycloheptane
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.924(3)
_cell_length_b                   10.537(3)
_cell_length_c                   11.061(3)
_cell_measurement_reflns_used    6800
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      27.499
_cell_measurement_theta_min      2.282
_cell_volume                     1040.1(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    XP
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0298
_diffrn_reflns_av_sigmaI/netI    0.0275
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7302
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.67
_exptl_absorpt_coefficient_mu    3.222
_exptl_absorpt_correction_T_max  0.4997
_exptl_absorpt_correction_T_min  0.3188
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.738
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       block
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.296
_refine_diff_density_min         -0.796
_refine_diff_density_rms         0.129
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     91
_refine_ls_number_reflns         2368
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0187
_refine_ls_R_factor_gt           0.0184
_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^)+(0.0212P)^2^+0.1085P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0457
_refine_ls_wR_factor_ref         0.0461
_reflns_number_gt                2336
_reflns_number_total             2368
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b608422b.txt
_cod_data_source_block           SIIHI
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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_cell_volume        1040.2(5)
_cod_original_sg_symbol_H-M      'P 2(1) 2(1) 2(1)'
_cod_database_code               7007664