A tin analogue of propadiene with cumulated C[double bond, length as m-dash]Sn double bonds.
Sugamata, Koh; Asakawa, Teppei; Minoura, Mao; Chemical science 15 (2024) 7072–7078; doi:10.1039/d4sc00093e

data_1571340
_publ_section_title
;
 A tin analogue of propadiene with cumulated C[double bond, length as
 m-dash]Sn double bonds.
;
_journal_issue                   19
_journal_name_full               'Chemical science'
_journal_page_first              7072
_journal_page_last               7078
_journal_paper_doi               10.1039/d4sc00093e
_journal_volume                  15
_journal_year                    2024
_chemical_formula_sum            'C54 H52 Si4 Sn2'
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_chemical_properties_physical    Air-sensitive,Moisture-sensitive
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_audit_update_record
;
2023-11-02 deposited with the CCDC.	2024-03-25 downloaded from the CCDC.
;
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_diffrn_measurement_device_type  'Bruker Photon II'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_unetI/netI     0.0119
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_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.49 (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.497
_exptl_crystal_description       plate
_exptl_crystal_F_000             532
_exptl_crystal_size_max          0.050
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.050
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_refine_ls_restrained_S_all      1.046
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0243P)^2^+0.6991P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0435
_refine_ls_wR_factor_ref         0.0436
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_reflns_threshold_expression     'I > 2\s(I)'
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_cod_depositor_comments
'Adding full bibliography for 1571336--1571341.cif.'
_cod_database_code               1571340
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.942
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_shelx_res_checksum              46882