Facilitating access to the most easily ionized molecule: an improved synthesis of the key intermediate, W2(hpp)4Cl2, and related compounds.
Cotton, F. Albert; Donahue, James P.; Gruhn, Nadine E.; Lichtenberger, Dennis L.; Murillo, Carlos A.; Timmons, Daren J.; Van Dorn, Laura O.; Villagrán, Dino; Wang, Xiaoping; Inorganic chemistry 45 (2006) 201–213; doi:10.1021/ic0515709

data_4340249
_publ_section_title
;
 Facilitating access to the most easily ionized molecule: an improved
 synthesis of the key intermediate, W2(hpp)4Cl2, and related compounds.
;
_journal_issue                   1
_journal_name_full               'Inorganic chemistry'
_journal_page_first              201
_journal_page_last               213
_journal_paper_doi               10.1021/ic0515709
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety         'C30 H48 N12 O2 W2 , 2(C H2 Cl2)'
_chemical_formula_sum            'C32 H52 Cl4 N12 O2 W2'
_chemical_formula_weight         1146.36
_chemical_name_common            ' W2(\m-hpp)2(\h-hpp)2(\m-CO)2,2CH2Cl2'
_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                102.471(2)
_cell_angle_beta                 101.692(2)
_cell_angle_gamma                114.904(2)
_cell_formula_units_Z            1
_cell_length_a                   9.1469(9)
_cell_length_b                   10.8208(10)
_cell_length_c                   11.8963(12)
_cell_measurement_reflns_used    5649
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      27.507
_cell_measurement_theta_min      2.3535
_cell_volume                     983.81(17)
_computing_cell_refinement       SAINT
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL V. 5.03 (Siemens, 1994)'
_computing_publication_material  CIFTAB
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device       'Bruker SMART 1000'
_diffrn_measurement_device_type  'area detector'
_diffrn_measurement_method       'omega 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  0.0193
_diffrn_reflns_av_sigmaI/netI    0.0337
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            6946
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         2.21
_diffrn_standards_number         'none (area detector data)'
_exptl_absorpt_coefficient_mu    6.161
_exptl_absorpt_correction_T_max  0.4991
_exptl_absorpt_correction_T_min  0.2299
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.935
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.122
_refine_diff_density_min         -1.938
_refine_diff_density_rms         0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     327
_refine_ls_number_reflns         4344
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0292
_refine_ls_R_factor_gt           0.0272
_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^)+(0.0495P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0682
_refine_ls_wR_factor_ref         0.0700
_reflns_number_gt                4076
_reflns_number_total             4344
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ic0515709si20050914_104451.cif
_cod_data_source_block           cmpd2TwoCH2Cl2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (25
times).

'_geom_bond_publ_flag' value 'N' changed to 'n' according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (12
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (55
times).

'_geom_angle_publ_flag' value 'N' changed to 'n' according
to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (19
times).

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_database_code               4340249