Diaceno[a,e]pentalenes from Homoannulations of o-Alkynylaryliodides Utilizing a Unique Pd(OAc)2/n-Bu4NOAc Catalytic Combination.
Shen, Junjian; Yuan, Dafei; Qiao, Yan; Shen, Xingxing; Zhang, Zhongbo; Zhong, Yuwu; Yi, Yuanping; Zhu, Xiaozhang; Organic letters 16 (2014) 4924–4927; doi:10.1021/ol502440d

data_1517557
_publ_section_title
;
 Diaceno[a,e]pentalenes from Homoannulations of o-Alkynylaryliodides
 Utilizing a Unique Pd(OAc)2/n-Bu4NOAc Catalytic Combination.
;
_journal_issue                   18
_journal_name_full               'Organic letters'
_journal_page_first              4924
_journal_page_last               4927
_journal_paper_doi               10.1021/ol502440d
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C60 H20 O2'
_chemical_formula_sum            'C60 H58 O2'
_chemical_formula_weight         811.06
_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                75.475(14)
_cell_angle_beta                 80.285(16)
_cell_angle_gamma                73.290(15)
_cell_formula_units_Z            1
_cell_length_a                   6.3965(13)
_cell_length_b                   9.8109(15)
_cell_length_c                   19.436(2)
_cell_measurement_reflns_used    2406
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      2.18
_cell_volume                     1124.7(3)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.314
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Saturn70 CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0501
_diffrn_reflns_av_sigmaI/netI    0.0622
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            11096
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.18
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_T_max  0.9888
_exptl_absorpt_correction_T_min  0.9819
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.197
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             434
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.635
_refine_diff_density_min         -0.322
_refine_diff_density_rms         0.063
_refine_ls_extinction_coef       0.034(16)
_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   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     294
_refine_ls_number_reflns         3969
_refine_ls_number_restraints     14
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.1289
_refine_ls_R_factor_gt           0.0905
_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^)+(0.1651P)^2^+0.3759P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2541
_refine_ls_wR_factor_ref         0.2893
_reflns_number_gt                2493
_reflns_number_total             3969
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol502440d_si_005.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
'Adding full bibliography for 1517557--1517560.cif.'
_cod_database_code               1517557