N–P Bond Cleavage Induced Ring Formation of Cyclosilazanes from Reactions of Aryl(phosphanyl)aminotrichlorosilanes with Lithium Alkynyls
Wang, Jinjin; Liu, Rui; Ruan, Wenqing; Li, Yan; Mondal, Kartik Chandra; Roesky, Herbert W.; Zhu, Hongping; Organometallics 33 (2014) 2696–; doi:10.1021/om401095n

data_4083318
_publ_section_title
;
 N--P Bond Cleavage Induced Ring Formation of Cyclosilazanes from
 Reactions of Aryl(phosphanyl)aminotrichlorosilanes with Lithium Alkynyls
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              2696
_journal_paper_doi               10.1021/om401095n
_journal_volume                  33
_journal_year                    2014
_chemical_formula_sum            'C24 H34 Cl4 N2 Si2'
_chemical_formula_weight         548.51
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.7248(2)
_cell_length_b                   11.3667(3)
_cell_length_c                   13.0557(4)
_cell_measurement_reflns_used    4378
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.6599
_cell_measurement_theta_min      3.0617
_cell_volume                     1435.06(7)
_computing_cell_refinement       'rapid auto (rigaku 2004)'
_computing_data_collection       'rapid auto (rigaku 2004)'
_computing_data_reduction        'rapid auto (rigaku 2004)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'rigaku raxis rapid IP area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0169
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            6064
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    0.511
_exptl_absorpt_correction_T_max  0.9047
_exptl_absorpt_correction_T_min  0.8216
_exptl_absorpt_correction_type   'empirical absorption correction'
_exptl_absorpt_process_details   'ABSCOR by T.Higashi 8 March, 1995'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.269
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.354
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    'refined in a riding mode to the carrier atom'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         2812
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0352
_refine_ls_R_factor_gt           0.0296
_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^)+(0.0397P)^2^+0.3780P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0754
_refine_ls_wR_factor_ref         0.0778
_reflns_number_gt                2514
_reflns_number_total             2812
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om401095n_si_002.cif
_cod_data_source_block           compound_(2,6-iPr2C6H3NSiCl2)2_B
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

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

 Adding full bibliography for 4083311--4083318.cif.

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' 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      P2(1)/n
_cod_database_code               4083318