Heteroleptic Phenylcalcium Derivatives via Metathesis Reactions of PhCa(thf)4I with Potassium Compounds
Gärtner, Martin; Görls, Helmar; Westerhausen, Matthias; Organometallics 26 (2007) 1077–; doi:10.1021/om061021q

data_4072772
_publ_section_title
;
 Heteroleptic Phenylcalcium Derivatives via Metathesis Reactions of
 PhCa(thf)4I with Potassium Compounds
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              1077
_journal_paper_doi               10.1021/om061021q
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C24 H47 Ca N O3 Si2'
_chemical_formula_weight         493.89
_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                 117.217(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.6989(7)
_cell_length_b                   10.7553(4)
_cell_length_c                   17.5032(5)
_cell_measurement_temperature    183(2)
_cell_volume                     2962.96(19)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-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  0.0911
_diffrn_reflns_av_sigmaI/netI    0.0828
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            20576
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.33
_exptl_absorpt_coefficient_mu    0.315
_exptl_absorpt_correction_T_max  1.0660
_exptl_absorpt_correction_T_min  0.9354
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.107
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1080
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.458
_refine_diff_density_min         -0.460
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         6774
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.1174
_refine_ls_R_factor_gt           0.0649
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0916P)^2^+1.5512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1623
_refine_ls_wR_factor_ref         0.1906
_reflns_number_gt                4100
_reflns_number_total             6774
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om061021qsi20061107_022228.cif
_cod_data_source_block           FO2834
_cod_original_cell_volume        2962.95(18)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4072772