Di-μ-chlorido-bis{[<i>N</i>,<i>N</i>'-dicyclohexyl-<i>N</i>'',<i>N</i>''-bis(trimethylsilyl)guanidinato-κ^2^<i>N</i>,<i>N</i>'](tetrahydrofuran-κ<i>O</i>)magnesium(II)}
Cheng, Jie; Acta Crystallographica Section E 67 (2011) m987–; doi:10.1107/S1600536811023865

data_2230658
_publ_section_title
;
 Di-\m-chlorido-bis{[<i>N</i>,<i>N</i>'-dicyclohexyl-<i>N</i>'',<i>N</i>''-bis(trimethylsilyl)guanidinato-\k^2^<i>N</i>,<i>N</i>'](tetrahydrofuran-\k<i>O</i>)magnesium(II)}
;
_journal_coeditor_code           HB5890
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m987
_journal_paper_doi               10.1107/S1600536811023865
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          '[Mg2 (C19 H40 N3 Si2)2 Cl2 (C4 H8 O)2]'
_chemical_formula_moiety         'C46 H96 Cl2 Mg2 N6 O2 Si4'
_chemical_formula_sum            'C46 H96 Cl2 Mg2 N6 O2 Si4'
_chemical_formula_weight         997.17
_chemical_name_systematic
;
Di-\m-chlorido-bis{[<i>N</i>,<i>N</i>'-dicyclohexyl-<i>N</i>'',<i>N</i>''-
bis(trimethylsilyl)guanidinato-\k^2^<i>N</i>,<i>N</i>'](tetrahydrofuran-
\k<i>O</i>)magnesium(II)}
;
_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                79.487(6)
_cell_angle_beta                 75.211(6)
_cell_angle_gamma                72.201(5)
_cell_formula_units_Z            1
_cell_length_a                   8.7249(3)
_cell_length_b                   11.0016(5)
_cell_length_c                   16.8893(8)
_cell_measurement_reflns_used    6219
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     1482.80(12)
_computing_cell_refinement       'CrystalClear (Rigaku, 2000)'
_computing_data_collection       'CrystalClear (Rigaku, 2000)'
_computing_data_reduction        'CrystalStructure (Rigaku, 2000)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      223(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0276
_diffrn_reflns_av_sigmaI/netI    0.0401
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12201
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.00
_exptl_absorpt_coefficient_mu    0.249
_exptl_absorpt_correction_T_max  0.462
_exptl_absorpt_correction_T_min  0.340
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(REQAB; Jacobson, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.117
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.399
_refine_diff_density_min         -0.415
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     287
_refine_ls_number_reflns         5485
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0659
_refine_ls_R_factor_gt           0.0496
_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^)+(0.0855P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1334
_refine_ls_wR_factor_ref         0.1413
_reflns_number_gt                4175
_reflns_number_total             5485
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb5890.cif
_cod_data_source_block           I
_cod_original_cell_volume        1482.80(11)
_cod_database_code               2230658
_cod_database_fobs_code          2230658