Simple ZnEt2 as catalyst in carbodiimide hydroalkynylation: structural and mechanistic studies
Martínez, Antonio; Moreno-Blázquez, Sonia; Rodriguez-Dieguez, Antonio; Ramos, Alberto; Fernandez-Galan, Rafael; Antiñolo, Antonio; CARRILLO-HERMOSILLA, FERNANDO; Dalton Trans.  (2017) –; doi:10.1039/C7DT02700A

data_7044120
_publ_section_title
;
 Simple ZnEt2 as catalyst in carbodiimide hydroalkynylation: structural
 and mechanistic studies
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C7DT02700A
_journal_year                    2017
_chemical_formula_sum            'C34 H48 N4 Zn2'
_chemical_formula_weight         643.50
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-06-06 deposited with the CCDC.
2017-09-04 downloaded from the CCDC.
;
_cell_angle_alpha                75.6480(10)
_cell_angle_beta                 73.4920(10)
_cell_angle_gamma                78.631(2)
_cell_formula_units_Z            2
_cell_length_a                   9.1553(4)
_cell_length_b                   13.1015(6)
_cell_length_c                   15.1781(14)
_cell_measurement_reflns_used    31869
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.72
_cell_measurement_theta_min      2.42
_cell_volume                     1675.26(19)
_computing_cell_refinement       'Bruker Apex II'
_computing_data_collection       'Bruker ApexII'
_computing_data_reduction        'Bruker Apex II'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       'Phi and Omega Scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0371
_diffrn_reflns_av_unetI/netI     0.0210
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       12
_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       -20
_diffrn_reflns_number            54060
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.240
_diffrn_reflns_theta_max         28.761
_diffrn_reflns_theta_min         2.342
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.459
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.589
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Bruker SADABS (Bruker, 1999)'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.276
_exptl_crystal_description       Prismatic
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.368
_refine_diff_density_min         -0.461
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         8682
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0287
_refine_ls_R_factor_gt           0.0228
_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^)+(0.0267P)^2^+0.7263P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0572
_refine_ls_wR_factor_ref         0.0601
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7668
_reflns_number_total             8682
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt02700a2.cif
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               7044120
_shelx_shelxl_version_number     2016/6
_shelx_res_checksum              92435