Cross-Conjugated Systems Based On An (E)-Hexa-3-en-1,5-diyne-3,4-diyl Skeleton: Spectroscopic and Spectroelectrochemical Investigations.
Gluyas, Josef B. G.; Manici, Valentina; Gückel, Simon; Vincent, Kevin B.; Yufit, Dmitry S.; Howard, Judith A. K.; Skelton, Brian W.; Beeby, Andrew; Kaupp, Martin; Low, Paul J.; The Journal of organic chemistry 80 (2015) 11501–11512; doi:10.1021/acs.joc.5b02240

data_4031736
_publ_section_title
;
 Cross-Conjugated Systems Based On An (E)-Hexa-3-en-1,5-diyne-3,4-diyl
 Skeleton: Spectroscopic and Spectroelectrochemical Investigations.
;
_journal_issue                   22
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              11501
_journal_page_last               11512
_journal_paper_doi               10.1021/acs.joc.5b02240
_journal_volume                  80
_journal_year                    2015
_chemical_formula_moiety         'C24 H26 Br2 Si2'
_chemical_formula_sum            'C24 H26 Br2 Si2'
_chemical_formula_weight         530.45
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2013-04-28
_audit_creation_method
;
  Olex2 1.2-beta
  (compiled Apr 23 2013 17:54:37, GUI svn.r4466)
;
_cell_angle_alpha                114.280(2)
_cell_angle_beta                 94.306(2)
_cell_angle_gamma                95.903(2)
_cell_formula_units_Z            1
_cell_length_a                   7.5780(5)
_cell_length_b                   9.1129(6)
_cell_length_c                   9.9879(7)
_cell_measurement_reflns_used    2325
_cell_measurement_temperature    120
_cell_measurement_theta_max      28.03
_cell_measurement_theta_min      2.25
_cell_volume                     620.13(7)
_computing_cell_refinement       'SAINT v6.45A (Bruker, 2003)'
_computing_data_collection       'SMART v5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT v6.45A (Bruker, 2003)'
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
XL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
olex2.solve (L.J. Bourhis, O.V. Dolomanov, R.J. Gildea, J.A.K. Howard,
H. Puschmann, in preparation, 2011)
;
_diffrn_ambient_temperature      120
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 5.6
_diffrn_detector_type            'Bruker SMART CCD 6000 area detector'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0337
_diffrn_reflns_av_unetI/netI     0.0470
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8019
_diffrn_reflns_theta_full        29.49
_diffrn_reflns_theta_max         29.49
_diffrn_reflns_theta_min         2.26
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           10.0
_diffrn_source_power             0.3
_diffrn_source_target            Mo
_diffrn_source_type              'sealed X-ray tube'
_diffrn_source_voltage           30.0
_exptl_absorpt_coefficient_mu    3.372
_exptl_absorpt_correction_T_max  0.9559
_exptl_absorpt_correction_T_min  0.2019
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2006/1 (Bruker,2006) was used for absorption correction.
R(int) was 0.0470 before and 0.0250 after correction.
The Ratio of minimum to maximum transmission is 0.2112.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.420
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             268
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.160
_refine_diff_density_min         -0.507
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     179
_refine_ls_number_reflns         3449
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0581
_refine_ls_R_factor_gt           0.0363
_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^)+(0.0350P)^2^+0.4500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0784
_refine_ls_wR_factor_ref         0.0887
_reflns_number_gt                2589
_reflns_number_total             3449
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5b02240_si_002.cif
_cod_data_source_block           9_13srv145
_cod_depositor_comments
'Adding full bibliography for 4031734--4031737.cif.'
_cod_database_code               4031736
_olex2_refinement_description
;
;