Synthesis, Structural Authentication, and Structurally Defined Metalation Reactions of Lithium and Sodium DA-Zincate Bases (DA = diisopropylamide) with Phenylacetylene†
Clegg, William; García-Álvarez, Joaquín; García-Álvarez, Pablo; Graham, David V.; Harrington, Ross W.; Hevia, Eva; Kennedy, Alan R.; Mulvey, Robert E.; Russo, Luca; Organometallics 27 (2008) 2654–; doi:10.1021/om8001813

data_4071478
_publ_section_title
;
 Synthesis, Structural Authentication, and Structurally Defined Metalation
 Reactions of Lithium and Sodium DA-Zincate Bases (DA = diisopropylamide)
 with Phenylacetylene&#x2020;
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              2654
_journal_paper_doi               10.1021/om8001813
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C20 H48 N3 Na Zn'
_chemical_formula_sum            'C20 H48 N3 Na Zn'
_chemical_formula_weight         418.97
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 102.215(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   27.7184(10)
_cell_length_b                   9.8386(3)
_cell_length_c                   19.6286(7)
_cell_measurement_reflns_used    6042
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.10
_cell_measurement_theta_min      1.00
_cell_volume                     5231.7(3)
_computing_data_collection       'Denzo & Collect'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXL97
_computing_structure_refinement  SHELXL97
_computing_structure_solution    SIR
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius KappaCCD'
_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  0.081
_diffrn_reflns_av_sigmaI/netI    0.0758
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            34146
_diffrn_reflns_theta_full        27.11
_diffrn_reflns_theta_max         27.11
_diffrn_reflns_theta_min         2.85
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.963
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.064
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1840
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.470
_refine_diff_density_min         -0.295
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         5767
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.1029
_refine_ls_R_factor_gt           0.0491
_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^)+(0.0306P)^2^+5.3123P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0794
_refine_ls_wR_factor_ref         0.0943
_reflns_number_gt                3733
_reflns_number_total             5767
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om8001813-file001.cif
_cod_data_source_block           grem265_compound2
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4071478