Catalyst-free room-temperature iClick reaction of molybdenum(II) and tungsten(II) azide complexes with electron-poor alkynes: Structural preferences and kinetic studies
Schmid, Paul; Maier, Matthias; Pfeiffer, Hendrik; Belz, Anja; Henry, Lucas; Friedrich, Alexandra; Schönfeld, Fabian; Edkins, Katharina; Schatzschneider, Ulrich; Dalton Trans.  (2017) –; doi:10.1039/C7DT03096G

data_7044224
_publ_section_title
;
 Catalyst-free room-temperature iClick reaction of molybdenum(II) and
 tungsten(II) azide complexes with electron-poor alkynes: Structural
 preferences and kinetic studies
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C7DT03096G
_journal_year                    2017
_chemical_formula_moiety         'C21 H18 F3 N5 O4 W'
_chemical_formula_sum            'C21 H18 F3 N5 O4 W'
_chemical_formula_weight         645.25
_chemical_name_common            '[W(allyl)(triazolateCF3,COOEt)(bpy)(CO)2]'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2016-07-01
_audit_update_record
;
2017-07-17 deposited with the CCDC.
2017-09-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.10(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.078(5)
_cell_length_b                   9.984(5)
_cell_length_c                   19.167(11)
_cell_measurement_reflns_used    9392
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.34
_cell_measurement_theta_min      2.30
_cell_volume                     2119.5(19)
_computing_cell_refinement       'Saint+ ver. V8.34A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2014.11-0 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. V8.34A (Bruker AXS)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD area detector (Apex2)'
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker X8-APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0305
_diffrn_reflns_av_unetI/netI     0.0211
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            24833
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.022
_diffrn_reflns_theta_min         1.839
_diffrn_source                   'rotating-anode (Nonius FR-591)'
_exptl_absorpt_coefficient_mu    5.517
_exptl_absorpt_correction_T_max  0.7471
_exptl_absorpt_correction_T_min  0.5169
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2014/5 (Bruker AXS)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.022
_exptl_crystal_description       block
_exptl_crystal_F_000             1248
_exptl_crystal_preparation
'Crystal fragment soaked in perfluoro polyether oil.'
_exptl_crystal_recrystallization_method
'recrystallised from dichloromethane and hexane by evaporation'
_exptl_crystal_size_max          0.588
_exptl_crystal_size_mid          0.472
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.873
_refine_diff_density_min         -0.626
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         4178
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0172
_refine_ls_R_factor_gt           0.0155
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0072P)^2^+2.9018P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0345
_refine_ls_wR_factor_ref         0.0351
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3932
_reflns_number_total             4178
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt03096g2.cif
_cod_data_source_block           AF048
_cod_database_code               7044224
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.140
_shelx_estimated_absorpt_t_max   0.405
_shelx_res_checksum              33859