Lewis acid mediated cyclisations of silylated methylenecyclopropyl hydrazones
Patient, Lee; Berry, Malcolm B.; Coles, Simon J.; Hursthouse, Mike B.; Kilburn, Jeremy D.; Chemical Communications (Cambridge, United Kingdom)  (2003) 2552–2553; doi:10.1039/b306636c

data_7104837
_publ_section_title
;
 Lewis acid mediated cyclisations of silylated methylenecyclopropyl
 hydrazones
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   20
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              2552
_journal_page_last               2553
_journal_paper_doi               10.1039/b306636c
_journal_year                    2003
_chemical_formula_sum            'C18 H28 N2 O2 S Si'
_chemical_formula_weight         364.57
_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                 115.86(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.291(3)
_cell_length_b                   11.709(2)
_cell_length_c                   13.341(3)
_cell_measurement_reflns_used    35413
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      30.51
_cell_measurement_theta_min      1.02
_cell_volume                     2008.9(7)
_computing_cell_refinement       'DENZO, COLLECT'
_computing_data_collection
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, 1998)'
_computing_data_reduction        'DENZO, COLLECT'
_computing_molecular_graphics    'PLATON (Spek, 1991)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.815
_diffrn_measured_fraction_theta_max 0.815
_diffrn_measurement_device_type  'Nonius KappaCCD Area Detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0857
_diffrn_reflns_av_sigmaI/netI    0.1025
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9715
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.35
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.233
_exptl_absorpt_correction_T_max  0.9907
_exptl_absorpt_correction_T_min  0.9637
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.722
_refine_diff_density_min         -0.564
_refine_diff_density_rms         0.086
_refine_ls_extinction_coef       0.0043(18)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.010
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     223
_refine_ls_number_reflns         3752
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.1251
_refine_ls_R_factor_gt           0.0691
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1126P)^2^+0.0935P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1625
_refine_ls_wR_factor_ref         0.1942
_reflns_number_gt                2320
_reflns_number_total             3752
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b306636c.txt
_cod_data_source_block           11a
_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_absorpt_correction_type' tag value 'multi-scans' was replaced
with 'multi-scan' value.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7104837