Pyrazolylborate-Zinc Complexes of RNA Precursors and Analogues Thereof
Michael Ruf; Karl Weis; Heinrich Vahrenkamp; Inorganic Chemistry 36 (1997) 2130–2137; doi:10.1021/ic961379m

data_4323426
_publ_section_title
;
 Pyrazolylborate-Zinc Complexes of RNA Precursors and Analogues Thereof
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2130
_journal_page_last               2137
_journal_paper_doi               10.1021/ic961379m
_journal_volume                  36
_journal_year                    1997
_chemical_compound_source        Benzene
_chemical_formula_sum            'C43 H49 B N8 O2 Zn'
_chemical_formula_weight         786.11
_chemical_name_common            Tp(Cum,Me)Zn-Uracilate
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                93.620(10)
_cell_angle_beta                 110.380(10)
_cell_angle_gamma                114.760(10)
_cell_formula_units_Z            2
_cell_length_a                   13.0590(10)
_cell_length_b                   13.6580(10)
_cell_length_c                   13.9700(10)
_cell_measurement_temperature    293(2)
_cell_volume                     2056.1(4)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       Nonius-Turbo-CAD4
_diffrn_measurement_method       Omega-2Theta
_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  0.0122
_diffrn_reflns_av_sigmaI/netI    0.0255
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            4186
_diffrn_reflns_theta_max         21.31
_diffrn_reflns_theta_min         2.60
_diffrn_standards_interval_count 'ICR every 3600 s, OCR every 200 refl.'
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.643
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.270
_exptl_crystal_density_meas      1.23
_exptl_crystal_description       isometric
_exptl_crystal_F_000             828
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.257
_refine_diff_density_min         -0.144
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.074
_refine_ls_goodness_of_fit_obs   1.059
_refine_ls_hydrogen_treatment    'Riding Model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     496
_refine_ls_number_reflns         3985
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_restrained_S_obs      1.059
_refine_ls_R_factor_all          0.0411
_refine_ls_R_factor_obs          0.0291
_refine_ls_shift/esd_max         0.143
_refine_ls_shift/esd_mean        0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0361P)^2^+1.3254P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0817
_refine_ls_wR_factor_obs         0.0734
_reflns_number_observed          3461
_reflns_number_total             3987
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ic961379m_2.cif
_cod_data_source_block           ura
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'None' changed to 'none'
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
(63 times).

'_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 (99 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0361P)^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^)+(0.0361P)^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        2056.1(3)
_cod_database_code               4323426