Crystal structure of 2-bromo-3-dimethylamino-<i>N</i>,<i>N</i>,<i>N</i>',<i>N</i>',4-pentamethyl-4-(trimethylsilyloxy)pent-2-eneamidinium bromide
Tiritiris, Ioannis; Kress, Ralf; Kantlehner, Willi; Acta Crystallographica Section E 71 (2015) o1061–o1062; doi:10.1107/S205698901502383X

data_2241480
_publ_section_title
;
 Crystal structure of
 2-bromo-3-dimethylamino-<i>N</i>,<i>N</i>,<i>N</i>',<i>N</i>',4-pentamethyl-4-(trimethylsilyloxy)pent-2-eneamidinium
 bromide
;
_journal_coeditor_code           FF2146
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1061
_journal_page_last               o1062
_journal_paper_doi               10.1107/S205698901502383X
_journal_volume                  71
_journal_year                    2015
_chemical_formula_iupac          'C15 H33 Br N3 O Si +, Br -'
_chemical_formula_moiety         'C15 H33 Br N3 O Si +, Br -'
_chemical_formula_sum            'C15 H33 Br2 N3 O Si'
_chemical_formula_weight         459.33
_chemical_name_systematic
'2-Bromo-3-dimethylamino-<i>N</i>,<i>N</i>,<i>N</i>',<i>N</i>',4-pentamethyl-4-(trimethylsilyloxy)pent-2-eneamidinium bromide'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.3524(5)
_cell_length_b                   11.3802(3)
_cell_length_c                   27.4261(14)
_cell_measurement_reflns_used    32287
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.26
_cell_measurement_theta_min      1.49
_cell_volume                     4167.5(3)
_computing_cell_refinement
;
SAINT (Bruker, 2008)
;
_computing_data_collection
;
APEX2 (Bruker, 2008)
;
_computing_data_reduction
;
SAINT (Bruker, 2008)
;
_computing_molecular_graphics
;
DIAMOND (Brandenburg & Putz, 2005)
;
_computing_publication_material
;
SHELXL2014 (Sheldrick, 2015)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Kappa APEXII DUO'
_diffrn_measurement_method       '\f scans, and \w scans'
_diffrn_radiation_monochromator  Triumph
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0951
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            32287
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.263
_diffrn_reflns_theta_min         1.485
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.953
_exptl_absorpt_correction_T_max  0.530
_exptl_absorpt_correction_T_min  0.285
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(Blessing, 1995)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.464
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.097
_refine_diff_density_min         -1.878
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.174
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         5164
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.174
_refine_ls_R_factor_all          0.1058
_refine_ls_R_factor_gt           0.0607
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+19.9082P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0901
_refine_ls_wR_factor_ref         0.0988
_reflns_number_gt                3394
_reflns_number_total             5164
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ff2146sup1.cif
_cod_data_source_block           I
_cod_database_code               2241480
_shelx_hkl_checksum              20688
_shelx_res_checksum              2945