An Efficient Synthesis of Acetylide/Trimetal/Acetylide Molecular Wires
John F. Berry; F. Albert Cotton; Carlos A. Murillo; Brian K. Roberts; Inorganic Chemistry 43 (2004) 2277–2283; doi:10.1021/ic0354320

data_4310813
_publ_contact_author_address
;  Laboratory for Molecular Structure and Bonding
   Dept. of Chemistry
   Texas A&M University, PO Box  30012
   College Station, TX 77842-3012, USA
;
_publ_contact_author_email       cotton@tamu.edu
_publ_contact_author_fax         '(979) 845 9351'
_publ_contact_author_name        'F. A. Cotton'
_publ_contact_author_phone       '(979) 845 4432'
_publ_section_title
;
 An Efficient Synthesis of Acetylide/Trimetal/Acetylide Molecular Wires
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2277
_journal_page_last               2283
_journal_paper_doi               10.1021/ic0354320
_journal_volume                  43
_journal_year                    2004
_chemical_formula_moiety         Cr3(C10H8N3)4(C8H5)1.86Cl0.14
_chemical_formula_sum            'C54.88 H41.3 Cl0.14 Cr3 N12'
_chemical_formula_weight         1029.82
_chemical_name_common            Cr3(dpa)4(CCPh)1.86Cl0.14
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 110.96(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.849(5)
_cell_length_b                   15.460(7)
_cell_length_c                   20.479(3)
_cell_measurement_reflns_used    240
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      17.3
_cell_measurement_theta_min      9.05
_cell_volume                     4982(3)
_computing_cell_refinement       MADNES
_computing_data_collection       MADNES
_computing_data_reduction        PROCOR
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Nonius FAST'
_diffrn_measurement_method       'Ellipsoid Mask-fitting'
_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  0.0763
_diffrn_reflns_av_sigmaI/netI    0.0510
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            21874
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         2.35
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.701
_exptl_absorpt_correction_T_max  0.8173
_exptl_absorpt_correction_T_min  0.7669
_exptl_crystal_colour            'dark green'
_exptl_crystal_density_diffrn    1.373
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       block
_exptl_crystal_F_000             2116
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.188
_refine_diff_density_min         -0.388
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     760
_refine_ls_number_reflns         6451
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0972
_refine_ls_R_factor_gt           0.0685
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0729P)^2^+18.6353P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1627
_refine_ls_wR_factor_ref         0.1877
_reflns_number_gt                4701
_reflns_number_total             6451
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0354320si20031213_044610_1.cif
_cod_data_source_block           xl
_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_formula_sum        'C54.88 H36.75 H4.55 Cl0.14 Cr3 N12'
_cod_database_code               4310813