Thermal and light-induced spin-crossover in salts of the heptadentate complex [tris(4-{pyrazol-3-yl}-3-aza-3-butenyl)amine]iron(ii).
Lazar, Hanane Z.; Forestier, Thibaut; Barrett, Simon A.; Kilner, Colin A.; Létard, Jean-François; Halcrow, Malcolm A.; Dalton transactions (Cambridge, England : 2003)  (2007) 4276–4285; doi:10.1039/b708971f

data_7006108
_publ_section_title
;
 Thermal and light-induced spin-crossover in salts of the heptadentate
 complex [tris(4-{pyrazol-3-yl}-3-aza-3-butenyl)amine]iron(ii).
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4276
_journal_page_last               4285
_journal_paper_doi               10.1039/b708971f
_journal_year                    2007
_chemical_formula_moiety         'C18 H24 Fe N10, 2[N O3], C H3 N O2'
_chemical_formula_sum            'C19 H27 Fe N13 O8'
_chemical_formula_weight         621.39
_chemical_name_common
;
(Tris-(4-(pyrazol-3-yl)-3-aza-3-butenyl)amine)iron(ii)
dinitrate mono-nitromethane solvate
;
_chemical_name_systematic
;
[Tris-(4-{pyrazol-3-yl}-3-aza-3-butenyl)amine]iron(II)
dinitrate mono-nitromethane solvate
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.626(2)
_cell_length_b                   12.574(2)
_cell_length_c                   17.373(3)
_cell_measurement_reflns_used    54613
_cell_measurement_temperature    30(2)
_cell_measurement_theta_max      26.29
_cell_measurement_theta_min      2.00
_cell_volume                     2539.7(7)
_computing_cell_refinement       'APEX 2 software, Bruker Nonius 2004'
_computing_data_collection       'APEX 2 software, Bruker Nonius 2004'
_computing_data_reduction        'SAINT, Bruker Nonius 2004'
_computing_molecular_graphics    'XSEED (Barbour, 2003)'
_computing_publication_material  'local program'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      30(2)
_diffrn_detector_area_resol_mean '120 microns'
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker X8 Apex diffractometer'
_diffrn_measurement_method       'Rotation images'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0599
_diffrn_reflns_av_sigmaI/netI    0.0324
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            54613
_diffrn_reflns_theta_full        26.29
_diffrn_reflns_theta_max         26.29
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    0.668
_exptl_absorpt_correction_T_max  1.482
_exptl_absorpt_correction_T_min  0.518
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G. M. (2002). SADABS v. 2.03. University of
G/ottingen, Germany.
;
_exptl_crystal_colour            Orange-brown
_exptl_crystal_density_diffrn    1.625
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'Rectangular prism'
_exptl_crystal_F_000             1288
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.22
_refine_diff_density_max         1.701
_refine_diff_density_min         -1.114
_refine_diff_density_rms         0.178
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.129
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         5096
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.129
_refine_ls_R_factor_all          0.1038
_refine_ls_R_factor_gt           0.0923
_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^)+(0.1198P)^2^+22.5397P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2524
_refine_ls_wR_factor_ref         0.2631
_reflns_number_gt                4559
_reflns_number_total             5096
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b708971f.txt
_cod_data_source_block           mh17230
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        2539.7(8)
_cod_database_code               7006108