Reversible and Irreversible Higher-Order Cycloaddition Reactions of Polyolefins with a Multiple-Bonded Heavier Group 13 Alkene Analogue: Contrasting the Behavior of Systems with π-π, π-π*, and π-n+ Frontier Molecular Orbital Symmetry
Christine A. Caputo; Jing-Dong Guo; Shigeru Nagase; James C. Fettinger; Philip P. Power; Journal of the American Chemical Society 134 (2012) 7155–7164; doi:10.1021/ja301247h

data_4117857
_publ_section_title
;
 Reversible and Irreversible Higher-Order Cycloaddition Reactions of
 Polyolefins with a Multiple-Bonded Heavier Group 13 Alkene Analogue:
 Contrasting the Behavior of Systems with \p-\p, \p-\p*, and \p-n+
 Frontier Molecular Orbital Symmetry
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7155
_journal_page_last               7164
_journal_paper_doi               10.1021/ja301247h
_journal_volume                  134
_journal_year                    2012
_chemical_formula_moiety         'C67 H82 Ga2, C6 H14, C6 H12'
_chemical_formula_sum            'C79 H108 Ga2'
_chemical_formula_weight         1197.09
_chemical_melting_point          481
_chemical_name_common            Ar'Ga(C7H8)GaAr'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                94.1420(10)
_cell_angle_beta                 101.2410(10)
_cell_angle_gamma                97.0510(10)
_cell_formula_units_Z            2
_cell_length_a                   12.7850(6)
_cell_length_b                   14.0628(7)
_cell_length_c                   19.8833(9)
_cell_measurement_reflns_used    9780
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      3.06
_cell_volume                     3462.8(3)
_computing_cell_refinement       'SAINT (7.68A) (Bruker, 2009)'
_computing_data_collection       'Apex2 (2010-7) (Bruker, 2010)'
_computing_data_reduction        'SAINT (7.68A) (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL 5.1, XP (Sheldrick, 1994)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0113
_diffrn_reflns_av_sigmaI/netI    0.0158
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            30305
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.76
_exptl_absorpt_coefficient_mu    0.819
_exptl_absorpt_correction_T_max  0.9081
_exptl_absorpt_correction_T_min  0.8940
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2008/2 (Sheldrick, 2008)'
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.148
_exptl_crystal_description       Block
_exptl_crystal_F_000             1288
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.419
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     733
_refine_ls_number_reflns         15805
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0352
_refine_ls_R_factor_gt           0.0320
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0588P)^2^+1.4340P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1008
_refine_ls_wR_factor_ref         0.1037
_reflns_number_gt                14350
_reflns_number_total             15805
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja301247h_si_004.cif
_cod_data_source_block           cc4fmi
_cod_database_code               4117857