Synthesis of volatile, reactive coinage metal 5,5-bicyclic amidinates with enhanced thermal stability for chemical vapor deposition.
Tong, Liuchuan; Davis, Luke M.; Gong, Xian; Feng, Jun; Beh, Eugene S.; Gordon, Roy G.; Dalton transactions (Cambridge, England : 2003) 48 (2019) 6709–6713; doi:10.1039/c9dt01202h

data_7049909
_publ_section_title
;
 Synthesis of volatile, reactive coinage metal 5,5-bicyclic amidinates
 with enhanced thermal stability for chemical vapor deposition.
;
_journal_issue                   20
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6709
_journal_page_last               6713
_journal_paper_doi               10.1039/c9dt01202h
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C20 H34 Au2 N4'
_chemical_formula_sum            'C20 H34 Au2 N4'
_chemical_formula_weight         724.45
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2019-01-05 deposited with the CCDC.    2019-04-29 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.6913(8)
_cell_length_b                   10.8324(7)
_cell_length_c                   17.6336(11)
_cell_measurement_reflns_used    430
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.341
_cell_measurement_theta_min      3.456
_cell_volume                     2233.2(3)
_computing_cell_refinement       'SAINT 8.37A (Bruker-AXS, 2015)'
_computing_data_reduction        'SAINT 8.37A (Bruker-AXS, 2015)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_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  0.0712
_diffrn_reflns_av_sigmaI/netI    0.0225
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            36880
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    13.134
_exptl_absorpt_correction_T_max  0.87766
_exptl_absorpt_correction_T_min  0.75647
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
'based on indexed crystal faces, Bruker SHELXTL97 (Sheldrick, 2014)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.155
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1360
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: CH2Cl2, C6H14'
_exptl_crystal_size_max          0.174
_exptl_crystal_size_mid          0.174
_exptl_crystal_size_min          0.094
_refine_diff_density_max         2.783
_refine_diff_density_min         -1.315
_refine_diff_density_rms         0.202
_refine_ls_extinction_coef       0.00057(7)
_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   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     123
_refine_ls_number_reflns         2572
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0272
_refine_ls_R_factor_gt           0.0240
_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^)+(0.0429P)^2^+2.5025P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0656
_refine_ls_wR_factor_ref         0.0669
_reflns_number_gt                2306
_reflns_number_total             2572
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9dt01202h2.cif
_cod_data_source_block           063077face
_cod_depositor_comments
'Adding full bibliography for 7049909--7049910.cif.'
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7049909