Syntheses, characterizations, and reactivities of new 1,4,7-trimethyl-l,4,7-triazacyclononane (Me3tacn) molybdenum and tungsten complexes
Zhang, Cai-Xia; Fang, Duo-Wen; Wang, Jun-Ling; Jia, Ai-Quan; Zhang, Qian-Feng; Inorganica Chimica Acta 507 (2020) 119599–; doi:10.1016/j.ica.2020.119599

data_1564859
_publ_section_title
;
 Syntheses, characterizations, and reactivities of new
 1,4,7-trimethyl-l,4,7-triazacyclononane (Me3tacn) molybdenum and tungsten
 complexes
;
_journal_name_full               'Inorganica Chimica Acta'
_journal_page_first              119599
_journal_paper_doi               10.1016/j.ica.2020.119599
_journal_volume                  507
_journal_year                    2020
_chemical_formula_sum            'C9 H29 N3 O7 W'
_chemical_formula_weight         475.20
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   9.036(5)
_cell_length_b                   13.639(7)
_cell_length_c                   27.171(13)
_cell_measurement_reflns_used    6850
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.44
_cell_measurement_theta_min      2.71
_cell_volume                     3349(3)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0319
_diffrn_reflns_av_unetI/netI     0.0244
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.982
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            19840
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.982
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.623
_diffrn_reflns_theta_min         2.806
_exptl_absorpt_coefficient_mu    6.930
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.885
_exptl_crystal_description       block
_exptl_crystal_F_000             1872
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.180
_exptl_transmission_factor_max   0.287
_exptl_transmission_factor_min   0.237
_refine_diff_density_max         0.616
_refine_diff_density_min         -0.937
_refine_diff_density_rms         0.103
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     216
_refine_ls_number_reflns         3828
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0351
_refine_ls_R_factor_gt           0.0260
_refine_ls_shift/su_max          0.024
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0219P)^2^+8.9161P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0569
_refine_ls_wR_factor_ref         0.0607
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                3118
_reflns_number_total             3828
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            4a.cif
_cod_data_source_block           PBCA
_cod_database_code               1564859
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.311
_shelx_estimated_absorpt_t_max   0.368
_shelx_res_checksum              46204
_shelx_hkl_checksum              78864