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_4310815
_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)2
_chemical_formula_sum            'C56 H42 Cr3 N12'
_chemical_formula_weight         1039.02
_chemical_name_common            Cr3(dpa)4(CCPh)2
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 110.906(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.856(11)
_cell_length_b                   15.348(10)
_cell_length_c                   20.373(13)
_cell_measurement_reflns_used    3442
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      45
_cell_measurement_theta_min      5
_cell_volume                     4924(6)
_computing_cell_refinement       SAINT
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       \w-scan
_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  0.0563
_diffrn_reflns_av_sigmaI/netI    0.0680
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            19929
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         1.70
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.702
_exptl_absorpt_correction_T_max  0.9930
_exptl_absorpt_correction_T_min  0.6987
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.402
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       plate
_exptl_crystal_F_000             2136
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.809
_refine_diff_density_min         -0.274
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     660
_refine_ls_number_reflns         6421
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.1298
_refine_ls_R_factor_gt           0.0572
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0869P)^2^+2.7373P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1480
_refine_ls_wR_factor_ref         0.1864
_reflns_number_gt                3335
_reflns_number_total             6421
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ic0354320si20031213_044610_3.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_cell_volume        4924(5)
_cod_database_code               4310815