New Volatile Strontium and Barium Imidazolate Complexes for the Deposition of Group 2 Metal Oxides
John A. T. Norman; Melanie Perez; M. S. Kim; Xinjian Lei; Sergei Ivanov; Agnes Derecskei-Kovacs; Laura Matz; Iain Buchanan; Arnold L. Rheingold; Inorganic Chemistry 50 (2011) 12396–12398; doi:10.1021/ic201751q

data_4327140
_publ_section_title
;
 New Volatile Strontium and Barium Imidazolate Complexes for the
 Deposition of Group 2 Metal Oxides
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12396
_journal_page_last               12398
_journal_paper_doi               10.1021/ic201751q
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C34 H62 N4 Sr'
_chemical_formula_weight         614.50
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 93.203(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.125(2)
_cell_length_b                   16.014(3)
_cell_length_c                   19.036(3)
_cell_measurement_reflns_used    3145
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      61.23
_cell_measurement_theta_min      30.46
_cell_volume                     3386.1(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0923
_diffrn_reflns_av_sigmaI/netI    0.0752
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            19217
_diffrn_reflns_theta_full        59.99
_diffrn_reflns_theta_max         59.99
_diffrn_reflns_theta_min         4.65
_exptl_absorpt_coefficient_mu    2.397
_exptl_absorpt_correction_T_max  0.814
_exptl_absorpt_correction_T_min  0.656
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_description       block
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.24
_refine_diff_density_max         1.237
_refine_diff_density_min         -0.807
_refine_diff_density_rms         0.143
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.116
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     364
_refine_ls_number_reflns         4839
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.116
_refine_ls_R_factor_all          0.1376
_refine_ls_R_factor_gt           0.0954
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1100P)^2^+30.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2261
_refine_ls_wR_factor_ref         0.2670
_reflns_number_gt                3349
_reflns_number_total             4839
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic201751q_si_002_4.cif
_cod_data_source_block           ap146
_cod_original_cell_volume        3386.2(10)
_cod_database_code               4327140