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_4319695
_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         'C18 H29 F N2 O2 Si'
_chemical_formula_sum            'C18 H29 F N2 O2 Si'
_chemical_formula_weight         352.52
_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                 109.77(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.284(4)
_cell_length_b                   7.8315(16)
_cell_length_c                   14.709(3)
_cell_measurement_reflns_used    2000
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.23
_cell_measurement_theta_min      2.50
_cell_volume                     1873.7(8)
_computing_cell_refinement       'STOE IPDS'
_computing_data_collection       'STOE IPDS'
_computing_data_reduction        'STOE IPDS'
_computing_molecular_graphics    'SHELXTL PLUS'
_computing_publication_material  'SHELXTL PLUS'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.925
_diffrn_measured_fraction_theta_max 0.925
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0832
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4591
_diffrn_reflns_theta_full        28.23
_diffrn_reflns_theta_max         28.23
_diffrn_reflns_theta_min         2.50
_exptl_absorpt_coefficient_mu    0.147
_exptl_absorpt_correction_T_max  0.9711
_exptl_absorpt_correction_T_min  0.9502
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.339
_refine_diff_density_rms         0.056
_refine_ls_extinction_coef       0.0089(11)
_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_ref   0.862
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         4591
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.862
_refine_ls_R_factor_all          0.0924
_refine_ls_R_factor_gt           0.0439
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0520P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0934
_refine_ls_wR_factor_ref         0.1073
_reflns_number_gt                2640
_reflns_number_total             4591
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0014484_6.cif
_cod_data_source_block           no13b
_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.

'_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^)+(0.0520P)^2^+0.0000P] 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^)+(0.0520P)^2^+0.0000P] 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        1873.6(7)
_cod_database_code               4319695