1,3-Butadienylzinc Trimer Formed via Transmetalation from 1,4-Dilithio-1,3-butadienes: Synthesis, Structural Characterization, and Application in Negishi Cross-Coupling
Zhou, Yi; Zhang, Wen-Xiong; Xi, Zhenfeng; Organometallics 31 (2012) 5546–; doi:10.1021/om3005004

data_4078892
_publ_section_title
;
 1,3-Butadienylzinc Trimer Formed via Transmetalation from
 1,4-Dilithio-1,3-butadienes: Synthesis, Structural Characterization, and
 Application in Negishi Cross-Coupling
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              5546
_journal_paper_doi               10.1021/om3005004
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C36 H60 Zn3'
_chemical_formula_sum            'C36 H60 Zn3'
_chemical_formula_weight         688.95
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           179
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 65 2 (0 0 1)'
_symmetry_space_group_name_H-M   'P 65 2 2'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            6
_cell_length_a                   11.557(4)
_cell_length_b                   11.557(4)
_cell_length_c                   48.530(19)
_cell_measurement_reflns_used    5529
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.2909
_cell_measurement_theta_min      4.5826
_cell_volume                     5613(4)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
;
 Mercury: visualization and analysis of crystal structures, C. F. Macrae,
 P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
 M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006.
;
_computing_publication_material  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELX-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0464
_diffrn_reflns_av_sigmaI/netI    0.0353
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -58
_diffrn_reflns_number            14890
_diffrn_reflns_theta_full        25.29
_diffrn_reflns_theta_max         25.29
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    1.927
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6725
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.223
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2196
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.295
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.057
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(3)
_refine_ls_extinction_coef       0.00207(15)
_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   1.126
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         3376
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.126
_refine_ls_R_factor_all          0.0500
_refine_ls_R_factor_gt           0.0461
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0248P)^2^+7.4241P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0951
_refine_ls_wR_factor_ref         0.0983
_reflns_number_gt                3171
_reflns_number_total             3376
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3005004_si_003.cif
_cod_data_source_block           a
_cod_original_cell_volume        5614(4)
_cod_original_sg_symbol_H-M      P6522
_cod_database_code               4078892