Base induced C‒CN bond cleavage at room temperature: a convenient method for the activation of acetonitrile
Zhang, Xiaofeng; Zhang, Zilong; Xiang, Shiqun; Zhu, Yingzu; Chen, Changneng; Huang, Deguang; Inorganic Chemistry Frontiers 6 (2019) 1135–; doi:10.1039/C8QI01258J

data_4349964
_publ_section_title
;
 Base induced C--CN bond cleavage at room temperature: a convenient method
 for the activation of acetonitrile
;
_journal_issue                   5
_journal_name_full               'Inorganic Chemistry Frontiers'
_journal_page_first              1135
_journal_paper_doi               10.1039/C8QI01258J
_journal_volume                  6
_journal_year                    2019
_chemical_formula_moiety         'C36 H49 Cu N5 O2, C8 H20 N'
_chemical_formula_sum            'C36 H49 Cu N5 O2'
_chemical_formula_weight         647.34
_chemical_name_common            '[Cu(NNN-Et-Pincer)-CN](Et4N)'
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2018-12-11 deposited with the CCDC.	2019-02-22 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.7451(18)
_cell_length_b                   10.6651(10)
_cell_length_c                   20.5900(16)
_cell_measurement_reflns_used    3297
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      70.8730
_cell_measurement_theta_min      4.2800
_cell_volume                     3457.5(6)
_computing_cell_refinement       'CrysAlisPro, Agilent Technologies'
_computing_data_collection       'CrysAlisPro, Agilent Technologies'
_computing_data_reduction        'CrysAlisPro, Agilent Technologies'
_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_detector_area_resol_mean 10.5594
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  Mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0677
_diffrn_reflns_av_sigmaI/netI    0.0594
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            12242
_diffrn_reflns_theta_full        70.00
_diffrn_reflns_theta_max         70.00
_diffrn_reflns_theta_min         4.29
_exptl_absorpt_coefficient_mu    1.181
_exptl_absorpt_correction_T_max  0.9654
_exptl_absorpt_correction_T_min  0.6895
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro, Agilent Technologies,Version 1.171.36.28 
Empirical absorption correction using spherical harmonics, 
implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            purple-brown
_exptl_crystal_density_diffrn    1.244
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1380
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.066
_refine_diff_density_min         -1.315
_refine_diff_density_rms         0.091
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     397
_refine_ls_number_reflns         4720
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.1038
_refine_ls_R_factor_gt           0.0847
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1345P)^2^+3.2072P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2226
_refine_ls_wR_factor_ref         0.2378
_reflns_number_gt                3656
_reflns_number_total             4720
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8qi01258j2.cif
_cod_data_source_block           Complex4
_cod_database_code               4349964