Synthesis and Structure of an Amino-Linked N-Heterocyclic Carbene and the Reactivity of its Aluminum Adduct
Shih, Wei-Chih; Wang, Chun-Han; Chang, Yang-Ting; Yap, Glenn P. A.; Ong, Tiow-Gan; Organometallics 28 (2009) 1060–; doi:10.1021/om800917j

data_4068525
_publ_section_title
;
 Synthesis and Structure of an Amino-Linked N-Heterocyclic Carbene and the
 Reactivity of its Aluminum Adduct
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              1060
_journal_paper_doi               10.1021/om800917j
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C24 H33 Al N2'
_chemical_formula_weight         376.50
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.9738(4)
_cell_length_b                   12.2449(2)
_cell_length_c                   8.11590(10)
_cell_measurement_reflns_used    9096
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.10
_cell_measurement_theta_min      2.43
_cell_volume                     2283.10(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 836.6
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0271
_diffrn_reflns_av_sigmaI/netI    0.0180
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            20379
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.13
_diffrn_reflns_theta_min         2.43
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2003)'
_exptl_crystal_density_diffrn    1.095
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             816
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.247
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         2614
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0450
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0622P)^2^+0.6680P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1056
_refine_ls_wR_factor_ref         0.1127
_reflns_number_gt                2203
_reflns_number_total             2614
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800917j_si_002.cif
_cod_data_source_block           i10393
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               4068525