Experimental and computational evidence of solid-state anion–π and π–π interactions in [VO(O2)(L)(pa)]·xH2O complexes (L = picolinate, pyrazinate or quinolinate; pa = picolinamide)
Gyepes, Róbert; Pacigová, Silvia; Sivák, Michal; Tatiersky, Jozef; New Journal of Chemistry 33 (2009) 1515–; doi:10.1039/b819875f

data_7051676
_publ_section_title
;
 Experimental and computational evidence of solid-state anion--\p and
 \p--\p interactions in [VO(O2)(L)(pa)]&#x00B7;xH2O complexes (L =
 picolinate, pyrazinate or quinolinate; pa = picolinamide)
;
_journal_issue                   7
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1515
_journal_paper_doi               10.1039/b819875f
_journal_volume                  33
_journal_year                    2009
_chemical_formula_moiety         'C13 H10 N3 O8 V, 2(H2 O)'
_chemical_formula_sum            'C13 H14 N3 O10 V'
_chemical_formula_weight         423.21
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.242(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.6949(3)
_cell_length_b                   14.4076(5)
_cell_length_c                   11.6205(3)
_cell_measurement_reflns_used    3803
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     1613.53(9)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\w and \p scans to fill the Ewald sphere'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0278
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            20862
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.11
_exptl_absorpt_coefficient_mu    0.680
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.742
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.90
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.409
_refine_diff_density_rms         0.062
_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     272
_refine_ls_number_reflns         3711
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0459
_refine_ls_R_factor_gt           0.0332
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0517P)^2^+0.8468P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0874
_refine_ls_wR_factor_ref         0.0954
_reflns_number_gt                3073
_reflns_number_total             3711
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            B819875F.txt
_cod_data_source_block           voo2chinpa
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7051676