Synthesis and properties of Zn‒Mg heterobimetallic carbamates. Crystal structures of the first reported single source precursors for ZnxMg1−xO thin films
Hill, Matthew R.; Jensen, Paul; Russell, Jennifer J.; Lamb, Robert N.; Dalton Transactions  (2008) 2751–2758; doi:10.1039/b712952a

data_7003141
_publ_section_title
;
 Synthesis and properties of Zn--Mg heterobimetallic carbamates.
 Crystal structures of the first reported single source precursors for
 ZnxMg1&#x2212;xO thin films
;
_journal_issue                   20
_journal_name_full               'Dalton Transactions'
_journal_page_first              2751
_journal_page_last               2758
_journal_paper_doi               10.1039/b712952a
_journal_year                    2008
_chemical_formula_moiety         'C84 H168 Mg0.62 N12 O26 Zn7.38, 4.5(C7 H16)'
_chemical_formula_sum            'C115.5 H240 Mg0.62 N12 O26 Zn7.38'
_chemical_formula_weight         2710.70
_chemical_name_systematic
;
?
;
_space_group_IT_number           148
_symmetry_cell_setting           rhombohedral
_symmetry_Int_Tables_number      148
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   19.536(3)
_cell_length_b                   19.536(3)
_cell_length_c                   33.566(7)
_cell_measurement_reflns_used    6541
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.0631
_cell_measurement_theta_min      2.4829
_cell_volume                     11094(3)
_computing_cell_refinement       'SAINT Ver. 6.45 (Bruker-AXS, 2003)'
_computing_data_collection       'SMART Ver. 5.054 (Bruker-AXS, 1998)'
_computing_data_reduction        'SAINT Ver. 6.45'
_computing_molecular_graphics
;
X-Seed (Barbour, 2001), SHELXTL Ver. 6.14 (Bruker-AXS, 2003)
;
_computing_publication_material  'modiCIFer-12162005 (Guzei, 2005)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_crystal_treatment
;
attached with Exxon Paratone N, to a short length
of fibre supported on a thin piece of copper wire
inserted in a copper mounting pin. The crystal was
quenched in a cold nitrogen gas stream from an
Oxford Cryosystems Cryostream.
;
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type  'Bruker CCD-1000 area detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           Mo-K\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0495
_diffrn_reflns_av_sigmaI/netI    0.0365
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            36154
_diffrn_reflns_theta_full        28.35
_diffrn_reflns_theta_max         28.35
_diffrn_reflns_theta_min         1.71
_diffrn_standards_decay_%        0.12
_diffrn_standards_number         314
_exptl_absorpt_coefficient_mu    1.241
_exptl_absorpt_correction_T_max  0.816
_exptl_absorpt_correction_T_min  0.593
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Gaussian (Coppens et al., 1965), XPREP (Bruker, 1995)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             4362
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.506
_refine_diff_density_min         -0.328
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         5993
_refine_ls_number_restraints     55
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.0640
_refine_ls_R_factor_gt           0.0294
_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^)+(0.0362P)^2^+7.4796P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0671
_refine_ls_wR_factor_ref         0.0820
_reflns_number_gt                4292
_reflns_number_total             5993
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b712952a.txt
_cod_data_source_block           20
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Rhombohedral' changed to 'rhombohedral'
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_sg_symbol_Hall     '-R 3 '
_cod_original_sg_symbol_H-M      'R -3 '
_cod_original_formula_sum        'C115.50 H240 Mg0.62 N12 O26 Zn7.38'
_cod_database_code               7003141