Sydnone anions and abnormal N-heterocyclic carbenes of O-ethylsydnones. Characterizations, calculations and catalyses
Sascha Wiechmann; Tyll Freese; Martin H. H. Drafz; Eike G. Hubner; Jan C. Namyslo; Martin Nieger; Andreas Schmidt; Chem.Commun. 50 (2014) 11822–; doi:10.1039/C4cc05461J

data_7115706
_publ_section_title
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 Sydnone anions and abnormal N-heterocyclic carbenes of O-ethylsydnones.
 Characterizations, calculations and catalyses
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_journal_name_full               Chem.Commun.
_journal_page_first              11822
_journal_paper_doi               10.1039/C4cc05461J
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C44 H35 Br N2 O2 P2 Pd'
_chemical_formula_sum            'C44 H35 Br N2 O2 P2 Pd'
_chemical_formula_weight         871.99
_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     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 100.544(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.8099(9)
_cell_length_b                   17.9947(14)
_cell_length_c                   17.1796(7)
_cell_measurement_reflns_used    320
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      1
_cell_volume                     3589.3(4)
_computing_cell_refinement       'EVALCCD (Duisenberg et al., 2003)'
_computing_data_collection       'Collect (Nonius, 1998)'
_computing_data_reduction        'EVALCCD (Duisenberg et al., 2003)'
_computing_molecular_graphics    'SHELXTL-Plus (Sheldrick, 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD'
_diffrn_measurement_method       'rotation in phi and omega, 2 deg.'
_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  0.0240
_diffrn_reflns_av_sigmaI/netI    0.0143
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            69335
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    1.762
_exptl_absorpt_correction_T_max  0.6942
_exptl_absorpt_correction_T_min  0.6338
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.614
_exptl_crystal_density_meas      ?
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1760
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.430
_refine_diff_density_min         -0.429
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.145
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     469
_refine_ls_number_reflns         8212
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.145
_refine_ls_R_factor_all          0.0299
_refine_ls_R_factor_gt           0.0227
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0112P)^2^+4.4724P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0476
_refine_ls_wR_factor_ref         0.0507
_reflns_number_gt                7323
_reflns_number_total             8212
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc05461j2.cif
_cod_data_source_block           schm52
_cod_depositor_comments
;
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               7115706