A facile and novel route to unprecedented manganese C4 cumulenic complexes
Venkatesan, Koushik; Fernández, Francisco J; Blacque, Olivier; Fox, Thomas; Alfonso, Montserrat; Schmalle, Helmut W; Berke, Heinz; Chemical communications (Cambridge, England)  (2003) 2006–2008; doi:10.1039/b304882a

data_7103832
_publ_section_title
;
 A facile and novel route to unprecedented manganese C4 cumulenic
 complexes
;
_journal_issue                   16
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2006
_journal_page_last               2008
_journal_paper_doi               10.1039/b304882a
_journal_year                    2003
_chemical_formula_sum            'C52 H53 Mn P2 Sn2'
_chemical_formula_weight         1032.20
_chemical_name_common
;
(eta$5!-methylcyclopentadienyl)-bis(dimethylphosphino)ethane-
vinyl-bis(triphenylstannyl)acetylide-manganese(i)
;
_chemical_name_systematic
; 
(\h^5^-methylcyclopentadienyl)-bis(dimethylphosphino)ethane-vinyl-
bis(triphenylstannyl)acetylide-manganese(I)
;
_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                 96.074(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.1101(5)
_cell_length_b                   16.0437(5)
_cell_length_c                   26.5040(5)
_cell_measurement_reflns_used    8000
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      30.40
_cell_measurement_theta_min      2.85
_cell_volume                     4697.7(3)
_computing_cell_refinement       'CELL, Stoe & Cie Company, Germany'
_computing_data_collection       'EXPOSE, Stoe & Cie Company, Germany'
_computing_data_reduction        'XRED, Stoe & Cie Company, Germany'
_computing_molecular_graphics    'PLATON97 (Spek, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.935
_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  'Stoe IPDS diffractometer'
_diffrn_measurement_method       '\f oscillation scan'
_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  0.1194
_diffrn_reflns_av_sigmaI/netI    0.2150
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            51894
_diffrn_reflns_theta_full        30.41
_diffrn_reflns_theta_max         30.41
_diffrn_reflns_theta_min         2.83
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count ' image'
_diffrn_standards_interval_time  'every image'
_diffrn_standards_number         '50 to 200'
_exptl_absorpt_coefficient_mu    1.421
_exptl_absorpt_correction_T_max  0.9021
_exptl_absorpt_correction_T_min  0.7339
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Coppens et al. 1965'
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.459
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2080
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.895
_refine_diff_density_min         -1.878
_refine_diff_density_rms         0.109
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.612
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     519
_refine_ls_number_reflns         13734
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.612
_refine_ls_R_factor_all          0.1146
_refine_ls_R_factor_gt           0.0396
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w==1/[\s^2^(Fo^2^)+(0.0192P)^2^] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0760
_refine_ls_wR_factor_ref         0.0897
_reflns_number_gt                5333
_reflns_number_total             13734
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b304882a.txt
_cod_data_source_block           2b
_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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7103832