Fast Carbon Dioxide Fixation by 2,6-Pyridinedicarboxamidato-nickel(II)-hydroxide Complexes: Influence of Changes in Reactive Site Environment on Reaction Rates
Deguang Huang; Olga V. Makhlynets; Lay Ling Tan; Sonny C. Lee; Elena V. Rybak-Akimova; R. H. Holm; Inorganic Chemistry 50 (2011) 10070–10081; doi:10.1021/ic200942u

data_4326482
_publ_section_title
;
 Fast Carbon Dioxide Fixation by
 2,6-Pyridinedicarboxamidato-nickel(II)-hydroxide Complexes: Influence of
 Changes in Reactive Site Environment on Reaction Rates
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10070
_journal_page_last               10081
_journal_paper_doi               10.1021/ic200942u
_journal_volume                  50
_journal_year                    2011
_chemical_formula_moiety         'C28 H30 N3 Ni O5, C8 H20 N'
_chemical_formula_sum            'C36 H50 N4 Ni O5'
_chemical_formula_weight         677.51
_chemical_name_common            (Et4N)[Ni(pyN2Et2)(HCO3)]
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
;
SHELXL-97

This data was obtained from a crappy crystal at 110K.

A two-set disordered model was applied to all the atoms of this molecule,
with final refined occupancies of 0.51/0.49 and 0.60 &/0.40 for main
structure and cation Et4N+, respectively. All the non-hydrogen atoms were
anisotroped.

The temperature factors of all atoms in this model were evened out by using
commands DELU & SIMU and some atoms by EADP, in order to reach
an elipsoid level of atom for publication, so that the R(reflections) were
affected to be given as slightly higher values compared to those of common
structures.

The cation Et4N+ has worse disorder problem than the main structure, so
its bond lengths and bond angles were constrainted by using DFIX
in addition to the using of DELU & SIMU and EADP for temperature factors.

The final refinement of this model gave a satisfied result accept by CIFcheck
program.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 102.029(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.1722(15)
_cell_length_b                   12.3940(12)
_cell_length_c                   19.0984(18)
_cell_measurement_reflns_used    8789
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.41
_cell_measurement_theta_min      2.27
_cell_volume                     3512.5(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_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_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0325
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            37728
_diffrn_reflns_theta_full        25.39
_diffrn_reflns_theta_max         25.39
_diffrn_reflns_theta_min         1.56
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.599
_exptl_absorpt_correction_T_max  0.8796
_exptl_absorpt_correction_T_min  0.8362
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
_exptl_crystal_F_000             1448
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.22
_refine_diff_density_max         1.079
_refine_diff_density_min         -1.120
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     768
_refine_ls_number_reflns         6427
_refine_ls_number_restraints     703
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.1039
_refine_ls_R_factor_gt           0.0807
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1632P)^2^+4.7520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2312
_refine_ls_wR_factor_ref         0.2666
_reflns_number_gt                4668
_reflns_number_total             6427
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200942u_si_001_5.cif
_cod_data_source_block           Compound8
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               4326482