Synthesis of Bis(amino)pyridines by the Stepwise Alkylation of Bis(imino)pyridines: An Unexpected and Selective Alkylation of the Aminoiminopyridine by AlMe3
Tay, Boon-Ying; Wang, Cun; Chia, Sze-Chen; Stubbs, Ludger P.; Wong, Pui-Kwan; van Meurs, Martin; Organometallics 30 (2011) 6028–; doi:10.1021/om200899f

data_4065519
_publ_section_title
;
 Synthesis of Bis(amino)pyridines by the Stepwise Alkylation of
 Bis(imino)pyridines: An Unexpected and Selective Alkylation of the
 Aminoiminopyridine by AlMe3
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              6028
_journal_paper_doi               10.1021/om200899f
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C35 H51 N3'
_chemical_formula_weight         513.79
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'by CrystalClear-SM 1.4.0 ra1'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.873(3)
_cell_length_b                   32.135(6)
_cell_length_c                   12.193(2)
_cell_measurement_reflns_used    6992
_cell_measurement_temperature    115.10
_cell_measurement_theta_max      31.1169
_cell_measurement_theta_min      2.1062
_cell_volume                     6219.4(19)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_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      110.15
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Saturn70 (2x2 bin mode)'
_diffrn_measurement_method       '\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  0.0768
_diffrn_reflns_av_sigmaI/netI    0.0825
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       36
_diffrn_reflns_limit_k_min       -38
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            19195
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         1.43
_exptl_absorpt_coefficient_mu    0.063
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.097
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2256
_exptl_crystal_size_max          0.2200
_exptl_crystal_size_mid          0.2000
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_refine_ls_number_restraints     0
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_refine_ls_R_factor_all          0.1720
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_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^)+(0.0729P)^2^+5.6934P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2356
_refine_ls_wR_factor_ref         0.2615
_reflns_number_gt                3884
_reflns_number_total             5667
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200899f_si_002.cif
_cod_data_source_block           cun291c
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        6219(2)
_cod_original_sg_symbol_H-M      Pccn
_cod_database_code               4065519