A low-temperature modification of hexa-<i>tert</i>-butyldisilane and a new polymorph of 1,1,2,2-tetra-<i>tert</i>-butyl-1,2-diphenyldisilane
Scholz, Stefan; Lerner, Hans-Wolfram; Bats, Jan W.; Acta Crystallographica Section C 70 (2014) 697–701; doi:10.1107/S2053229614013503

data_2019601
_publ_section_title
;
 A low-temperature modification of hexa-<i>tert</i>-butyldisilane and a
 new polymorph of 1,1,2,2-tetra-<i>tert</i>-butyl-1,2-diphenyldisilane
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              697
_journal_page_last               701
_journal_paper_doi               10.1107/S2053229614013503
_journal_volume                  70
_journal_year                    2014
_chemical_formula_iupac          'C28 H46 Si2'
_chemical_formula_moiety         'C28 H46 Si2'
_chemical_formula_sum            'C28 H46 Si2'
_chemical_formula_weight         438.83
_chemical_name_systematic
;
1,1,2,2-Tetra-<i>tert</i>-butyl-1,2-diphenyldisilane
;
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_cell_measurement_reflns_used    165
_cell_measurement_temperature    157(2)
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_cell_measurement_theta_min      3
_cell_volume                     2676.9(6)
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_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      157(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.958
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_diffrn_reflns_theta_max         28.00
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_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
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_refine_ls_R_factor_gt           0.0498
_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^)+(0.051P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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_reflns_threshold_expression     I>2\s(I)
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_cod_depositor_comments
'Adding full bibliography for 2019600--2019601.cif.'
_cod_original_cell_volume        2676.8(6)
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