Regioselective Zn(OAc)2-catalyzed azide–alkyne cycloaddition in water: the green click-chemistry
Morozova, Maria A.; Yusubov, Mekhman S.; Kratochvil, Bohumil; Eigner, Václav; Bondarev, Alexander A.; Yoshimura, Akira; Saito, Akio; Zhdankin, Viktor V.; Trusova, Marina E.; Postnikov, Pavel S.; Organic Chemistry Frontiers 4 (2017) 978–; doi:10.1039/C6QO00787B

data_1553625
_publ_section_title
;
 Regioselective Zn(OAc)2-catalyzed azide--alkyne cycloaddition in water:
 the green click-chemistry
;
_journal_issue                   6
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              978
_journal_paper_doi               10.1039/C6QO00787B
_journal_volume                  4
_journal_year                    2017
_chemical_formula_moiety         'C21 H34 N4 O2 Si1'
_chemical_formula_sum            'C21 H34 N4 O2 Si'
_chemical_formula_weight         402.61
_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   difmap
_atom_sites_solution_primary     other
_audit_update_record
;
2016-10-31 deposited with the CCDC.
2017-02-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   8.9462(5)
_cell_length_b                   11.9145(6)
_cell_length_c                   43.549(2)
_cell_measurement_reflns_used    71
_cell_measurement_temperature    180
_cell_measurement_theta_max      54
_cell_measurement_theta_min      8
_cell_volume                     4641.9(4)
_computing_cell_refinement       'Apex3 (Bruker AXS, 2015)'
_computing_data_collection       'Apex3 (Bruker AXS, 2015)'
_computing_data_reduction        'Apex3 (Bruker AXS, 2015)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'Superflip (Palatinus & Chapuis, 2007)'
_diffrn_ambient_pressure         101
_diffrn_ambient_temperature      180
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Bruker Kappa Apex3'
_diffrn_measurement_method       '\f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.058
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       48
_diffrn_reflns_limit_l_min       -52
_diffrn_reflns_number            34502
_diffrn_reflns_theta_full        68.283
_diffrn_reflns_theta_max         68.283
_diffrn_reflns_theta_min         2.029
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.065
_exptl_absorpt_correction_T_max  0.93
_exptl_absorpt_correction_T_min  0.78
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Siemens, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.152
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.498
_exptl_crystal_size_mid          0.077
_exptl_crystal_size_min          0.072
_refine_diff_density_max         0.33
_refine_diff_density_min         -0.32
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9617
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         4236
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0668
_refine_ls_R_factor_gt           0.0577
_refine_ls_shift/su_max          0.0009209
_refine_ls_shift/su_mean         0.0000503
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 18.7 27.3 13.0 3.21 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1162
_refine_ls_wR_factor_gt          0.1136
_refine_ls_wR_factor_ref         0.1162
_reflns_limit_h_max              10
_reflns_limit_h_min              0
_reflns_limit_k_max              14
_reflns_limit_k_min              0
_reflns_limit_l_max              52
_reflns_limit_l_min              0
_reflns_number_gt                3647
_reflns_number_total             4237
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   2.66
_oxford_diffrn_Wilson_scale      12.01
_oxford_refine_ls_r_factor_ref   0.0668
_oxford_refine_ls_scale          0.3162(3)
_oxford_reflns_number_all        4236
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_cod_data_source_file            c6qo00787b2.cif
_cod_data_source_block           3aj
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_atom_sites_solution_primary' value 'Other' was changed to
'other' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        4641.8(4)
_cod_original_sg_symbol_Hall     '-P 2ac 2ab '
_cod_original_sg_symbol_H-M      'P b c a '
_cod_original_formula_sum        'C21 H34 N4 O2 Si1'
_cod_database_code               1553625
_iucr_refine_instruction_details_constraints
;
BLOCK SCALE X'S, U'S 
RIDE C   (   7,X'S) H   (  71,X'S) 
RIDE C   (   8,X'S) H   (  81,X'S) 
RIDE C   (  10,X'S) H   ( 101,X'S) 
RIDE C   (  11,X'S) H   ( 111,X'S) 
RIDE C   (  16,X'S) H   ( 161,X'S) 
RIDE C   (  17,X'S) H   ( 171,X'S) H   ( 172,X'S) H   ( 173,X'S) 
RIDE C   (  18,X'S) H   ( 181,X'S) H   ( 182,X'S) H   ( 183,X'S) 
RIDE C   (  19,X'S) H   ( 191,X'S) 
RIDE C   (  20,X'S) H   ( 201,X'S) H   ( 202,X'S) H   ( 203,X'S) 
RIDE C   (  21,X'S) H   ( 211,X'S) H   ( 212,X'S) H   ( 213,X'S) 
RIDE C   (  22,X'S) H   ( 221,X'S) 
RIDE C   (  23,X'S) H   ( 231,X'S) H   ( 232,X'S) H   ( 233,X'S) 
RIDE C   (  24,X'S) H   ( 241,X'S) H   ( 242,X'S) H   ( 243,X'S) 
RIDE C   (  25,X'S) H   ( 251,X'S) H   ( 252,X'S) 
RIDE C   (  26,X'S) H   ( 261,X'S) H   ( 262,X'S) 
RIDE C   (  27,X'S) H   ( 271,X'S) H   ( 272,X'S) 
RIDE C   (  28,X'S) H   ( 281,X'S) H   ( 282,X'S) H   ( 283,X'S) 
END                                                                             
;
_iucr_refine_instruction_details_restraints
;
NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
END                                                                             
;