Synthesis of monodispersed magnetite nanoparticles from iron pivalate clusters.
Abdulwahab, Khadijat; Malik, Mohammad A.; O'Brien, Paul; Govender, Kuveshni; Muryn, Christopher A.; Timco, Grigore A.; Tuna, Floriana; Winpenny, Richard E. P.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 196–206; doi:10.1039/c2dt32478d

data_7022367
_publ_section_title
;
 Synthesis of monodispersed magnetite nanoparticles from iron pivalate
 clusters.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              196
_journal_page_last               206
_journal_paper_doi               10.1039/c2dt32478d
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C164 H190 Cl12 Fe8 O37'
_chemical_formula_weight         3625.36
_space_group_IT_number           85
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   20.1880(3)
_cell_length_b                   20.1880(3)
_cell_length_c                   21.5726(7)
_cell_measurement_reflns_used    8567
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.9674
_cell_measurement_theta_min      2.8269
_cell_volume                     8792.0(3)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET)
(compiled Apr 21 2008,18:23:10)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET)
(compiled Apr 21 2008,18:23:10)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET)
(compiled Apr 21 2008,18:23:10)
;
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3367
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Diffraction XCalibur 2'
_diffrn_measurement_method       'phi and omega'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0996
_diffrn_reflns_av_sigmaI/netI    0.0592
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            61772
_diffrn_reflns_theta_full        25.34
_diffrn_reflns_theta_max         25.34
_diffrn_reflns_theta_min         3.19
_exptl_absorpt_coefficient_mu    0.893
_exptl_absorpt_correction_T_max  0.9737
_exptl_absorpt_correction_T_min  0.8416
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET)
(compiled Apr 21 2008,18:23:10)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.369
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             3764
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.812
_refine_diff_density_min         -0.915
_refine_diff_density_rms         0.116
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     517
_refine_ls_number_reflns         8052
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0926
_refine_ls_R_factor_gt           0.0564
_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^)+(0.0769P)^2^+13.5617P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1481
_refine_ls_wR_factor_ref         0.1685
_reflns_number_gt                5579
_reflns_number_total             8052
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt32478d.txt
_cod_data_source_block           y:\documents\orepw396\orepw396p4n
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P4/n
_cod_database_code               7022367