Monocyclic Zwitterionic λ5Si-Silicates with an SiO2FC2 Framework: Syntheses and Structural Characterization in the Solid State and in Solution
Reinhold Tacke; Rüdiger Bertermann; Olaf Dannappel; Ruth E. Neugebauer; Melanie Pülm; Reiner Willeke; Inorganic Chemistry 40 (2001) 2520–2527; doi:10.1021/ic0014484

data_4319694
_publ_contact_author
;       Reinhold Tacke
    Institut f\"ur Anorganische Chemie
    Bayerische Julius-Maximilians-Universit\"at W\"urzburg
    Am Hubland
    D-97074 W\"urzburg
    Bundesrepublik Deutschland
;
_publ_contact_author_email       r.tacke@mail.uni-wuerzburg.de
_publ_contact_author_fax         '049 931 8884609'
_publ_contact_author_phone       '049 931 8885250'
_publ_section_title
;
 Monocyclic Zwitterionic \l5Si-Silicates with an SiO2FC2 Framework:
 Syntheses and Structural Characterization in the Solid State and in
 Solution
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2520
_journal_page_last               2527
_journal_paper_doi               10.1021/ic0014484
_journal_volume                  40
_journal_year                    2001
_chemical_formula_moiety         'C11 H17 F N2 O2 Si'
_chemical_formula_sum            'C11 H17 F N2 O2 Si'
_chemical_formula_weight         256.36
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.967(2)
_cell_length_b                   10.812(7)
_cell_length_c                   22.5856(19)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      4
_cell_volume                     2678.1(18)
_computing_cell_refinement       'Enraf-Nonius CAD4'
_computing_data_collection       'Enraf-Nonius CAD4'
_computing_molecular_graphics    'Siemens, SHELXTL-PLUS'
_computing_publication_material  'Siemens, SHELXTL-PLUS'
_computing_structure_refinement  'SHELXL-96 (Sheldrick, 1996)'
_computing_structure_solution    'SHELXS-96 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measurement_device       'Enraf-Nonius CAD4'
_diffrn_measurement_method       Omega-Theta-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  0.0186
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -2
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            2016
_diffrn_reflns_theta_max         22.87
_diffrn_reflns_theta_min         2.59
_diffrn_standards_interval_time  1h
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.180
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.272
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.230
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.039
_refine_ls_extinction_coef       0.0086(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   1.019
_refine_ls_goodness_of_fit_obs   1.056
_refine_ls_hydrogen_treatment    riding-model
_refine_ls_matrix_type           full
_refine_ls_number_parameters     162
_refine_ls_number_reflns         1828
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_restrained_S_obs      1.056
_refine_ls_R_factor_all          0.0458
_refine_ls_R_factor_obs          0.0316
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0436P)^2^+1.3254P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0846
_refine_ls_wR_factor_obs         0.0783
_reflns_number_observed          1490
_reflns_number_total             1828
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ic0014484_5.cif
_cod_data_source_block           no13a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_geom_angle_publ_flag' value 'Y' changed to 'y' according to the
built-in table from CIF Core dictionary named 'cif_core.dic' version
2.4.1 from 2010-06-29 (10 times).

'_geom_bond_publ_flag' value 'Y'
changed to 'y' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (5
times).

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0436P)^2^+1.3254P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0436P)^2^+1.3254P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2678.2(18)
_cod_database_code               4319694