Monomeric malonate precursors for the MOCVD of HfO2 and ZrO2 thin films
Pothiraja, Ramasamy; Milanov, Andrian; Parala, Harish; Winter, Manuela; Fischer, Roland A.; Devi, Anjana; Dalton Transactions  (2009) 654–; doi:10.1039/b810528f

data_7000242
_publ_section_title
;
 Monomeric malonate precursors for the MOCVD of HfO2 and ZrO2 thin
 films
;
_journal_issue                   4
_journal_name_full               'Dalton Transactions'
_journal_page_first              654
_journal_paper_doi               10.1039/b810528f
_journal_year                    2009
_chemical_formula_sum            'C35 H52 Hf O16'
_chemical_formula_weight         907.26
_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                 117.421(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.3042(7)
_cell_length_b                   18.4262(8)
_cell_length_c                   15.8807(7)
_cell_measurement_reflns_used    2100
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.499
_cell_measurement_theta_min      2.565
_cell_volume                     3975.2(3)
_computing_cell_refinement       'CrysAlis RED 1.171.13, Oxford Diffraction'
_computing_data_collection       'CrysAlis CCD 1.171.13, Oxford Diffraction'
_computing_data_reduction        'CrysAlis RED 1.171.13, Oxford Diffraction'
_computing_molecular_graphics    SHELXL-97
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Sapphire2-CCD, Oxford Diffraction'
_diffrn_measurement_method       '560 images at 1.0 deg. in \w and 15 sec.'
_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  0.0342
_diffrn_reflns_av_sigmaI/netI    0.0258
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            32128
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.88
_exptl_absorpt_coefficient_mu    2.692
_exptl_absorpt_correction_T_max  0.430
_exptl_absorpt_correction_T_min  0.350
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.516
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1848
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.31
_refine_diff_density_max         3.003
_refine_diff_density_min         -1.128
_refine_diff_density_rms         0.099
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     469
_refine_ls_number_reflns         6982
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0303
_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^)+(0.0203P)^2^+13.2862P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0620
_refine_ls_wR_factor_ref         0.0723
_reflns_number_gt                5379
_reflns_number_total             6982
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b810528f.txt
_cod_data_source_block           cvd185
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7000242