Triazolopyridines as ligands: structural diversity in iron(II), cobalt(II), nickel(II) and copper(II) complexes of 3-(2-pyridyl)-[1,2,4]triazolo[4,3-a]- pyridine (L¹⁰) and spin crossover in [Fe(II)(L¹⁰)₂(NCS)₂].
Klingele, Julia; Kaase, Dominic; Hilgert, Jakob; Steinfeld, Gunther; Klingele, Marco H.; Lach, Jochen; Dalton transactions (Cambridge, England : 2003) 39 (2010) 4495–4507; doi:10.1039/b925107c

data_7025114
_publ_section_title
;
 Triazolopyridines as ligands: structural diversity in iron(II),
 cobalt(II), nickel(II) and copper(II) complexes of
 3-(2-pyridyl)-[1,2,4]triazolo[4,3-a]- pyridine (L&#x00B9;&#x2070;) and
 spin crossover in [Fe(II)(L&#x00B9;&#x2070;)&#x2082;(NCS)&#x2082;].
;
_journal_issue                   19
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4495
_journal_page_last               4507
_journal_paper_doi               10.1039/b925107c
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety
;
C11 H11 N5
;
_chemical_formula_sum            'C11 H11 N5'
_chemical_formula_weight         213.25
_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                 113.15(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.178(2)
_cell_length_b                   12.462(3)
_cell_length_c                   14.973(3)
_cell_measurement_reflns_used    5076
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      28.14
_cell_measurement_theta_min      1.82
_cell_volume                     2089.4(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      120(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0557
_diffrn_reflns_av_sigmaI/netI    0.0336
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            46697
_diffrn_reflns_theta_full        28.14
_diffrn_reflns_theta_max         28.14
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9886
_exptl_absorpt_correction_T_min  0.9562
_exptl_absorpt_correction_type   'semi-empirical (SADABS)'
_exptl_absorpt_process_details
;
March 2001 T Higashi
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.356
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.186
_refine_diff_density_min         -0.180
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     313
_refine_ls_number_reflns         5076
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0749
_refine_ls_R_factor_gt           0.0421
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0482P)^2^+0.3951P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0962
_refine_ls_wR_factor_ref         0.1117
_reflns_number_gt                3386
_reflns_number_total             5076
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b925107c.txt
_cod_data_source_block           jmk_afp_09
_cod_original_cell_volume        2089.4(7)
_cod_original_sg_symbol_H-M      'P 2(1)/c'
_cod_database_code               7025114