Aluminacyclopropene: syntheses, characterization, and reactivity toward terminal alkynes.
Zhu, Hongping; Oswald, Rainer B; Fan, Hongjun; Roesky, Herbert W; Ma, Qingjun; Yang, Zhi; Schmidt, Hans-Georg; Noltemeyer, Mathias; Starke, Kerstin; Hosmane, Narayan S; Journal of the American Chemical Society 128 (2006) 5100–5108; doi:10.1021/ja057731p

data_4101432
_publ_section_title
;
 Aluminacyclopropene: syntheses, characterization, and reactivity
 toward terminal alkynes.
;
_journal_issue                   15
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5100
_journal_page_last               5108
_journal_paper_doi               10.1021/ja057731p
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C45 H53 Al N2'
_chemical_formula_weight         648.87
_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                73.57(3)
_cell_angle_beta                 75.60(3)
_cell_angle_gamma                72.74(3)
_cell_formula_units_Z            2
_cell_length_a                   11.118(2)
_cell_length_b                   12.440(3)
_cell_length_c                   15.279(3)
_cell_measurement_temperature    100(2)
_cell_volume                     1904.2(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  IPDS2
_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  0.0381
_diffrn_reflns_av_sigmaI/netI    0.0319
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            36702
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         1.76
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.086
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.132
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             700
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.557
_refine_diff_density_min         -0.415
_refine_diff_density_rms         0.056
_refine_ls_extinction_coef       none
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.232
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     588
_refine_ls_number_reflns         7783
_refine_ls_number_restraints     407
_refine_ls_restrained_S_all      1.212
_refine_ls_R_factor_all          0.0818
_refine_ls_R_factor_gt           0.0736
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0468P)^2^+1.9353P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1508
_refine_ls_wR_factor_ref         0.1549
_reflns_number_gt                7016
_reflns_number_total             7783
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja057731psi20060220_024121.cif
_cod_data_source_block           compound6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4101432