Reaction of N-methyldihydropyridines with alkoxycarbene complexes of chromium and tungsten: sequential use of three carbonyl ligands of Cr(CO)6 for the formation of polyoxygenated compounds
Rudler, Henri; Parlier, Andrée; Martin-Vaca, Blanca; Garrier, Eva; Vaissermann, Jacqueline; Chemical Communications  (1999) 1439–; doi:10.1039/a903474i

data_7110581
_publ_contact_author
;
    Dr. Henri Rudler  
;
_publ_section_title
;
 Reaction of N-methyldihydropyridines with alkoxycarbene complexes of
 chromium and tungsten: sequential use of three carbonyl ligands of
 Cr(CO)6 for the formation of polyoxygenated compounds
;
_journal_issue                   15
_journal_name_full               'Chemical Communications'
_journal_page_first              1439
_journal_paper_doi               10.1039/a903474i
_journal_year                    1999
_chemical_compound_source
;
?
;
_chemical_formula_moiety         ' C22 H24 O2 '
_chemical_formula_sum            'C22 H24 O2'
_chemical_formula_weight         320.43
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_audit_creation_date             98-07-03
_audit_creation_method           CRYSTALS
_cell_angle_alpha                90
_cell_angle_beta                 99.328
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.028(4)
_cell_length_b                   8.436(8)
_cell_length_c                   24.179(8)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    295
_cell_measurement_theta_max      11.3
_cell_measurement_theta_min      10.7
_cell_volume                     1817(2)
_computing_cell_refinement       'CAD-4 software (Enraf-Nonius, 1989)'
_computing_data_collection       'CAD-4 software (Enraf-Nonius, 1989)'
_computing_data_reduction
;
RC93 (Watkin, D.J., Prout, C.K., Lilley, P.M.deQ. 1994)
;
_computing_molecular_graphics
;
 CAMERON (Watkin, Prout & Pearce,  1996)
;
_computing_publication_material
;
CRYSTALS Issue 10 (Watkin, Prout, Carruthers & Betteridge, 1996)
;
_computing_structure_refinement
;
CRYSTALS Issue 10 (Watkin, Prout, Carruthers & Betteridge, 1996)
;
_diffrn_ambient_temperature      295
_diffrn_measurement_device       '  Enraf-nonius CAD4 '
_diffrn_measurement_method       2\q/\w
_diffrn_radiation_monochromator  ' graphite '
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.05
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            3663
_diffrn_reflns_theta_max         25
_diffrn_reflns_theta_min         1
_diffrn_standards_decay_%        ' none'
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.07
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            ' none '
_exptl_crystal_density_diffrn    1.17
_exptl_crystal_description       ' prism '
_exptl_crystal_F_000             688.16
_exptl_crystal_size_max          0.53
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.18
_refine_diff_density_min         -0.19
_refine_ls_extinction_coef       ' none '
_refine_ls_goodness_of_fit_obs   1.1501
_refine_ls_hydrogen_treatment
;
 one overall isotropic thermal parameter refined
;
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         1319
_refine_ls_R_factor_obs          0.0544
_refine_ls_shift/esd_max         0.103004
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme
;
 Chebychev polynomial (Carruthers & Watkin, 1979)
;
_refine_ls_wR_factor_obs         0.0645
_reflns_limit_h_max              10
_reflns_limit_h_min              -10
_reflns_limit_k_max              10
_reflns_limit_k_min              0
_reflns_limit_l_max              28
_reflns_limit_l_min              0
_reflns_number_observed          1319
_reflns_number_total             3193
_reflns_observed_criterion       >3.00\s(I)
_cod_data_source_file            903474isup1.cif
_cod_data_source_block           CRYSTALS_cif
_cod_depositor_comments
;
The following automatic conversions were performed:

'_cell_measurement_temperature' value '295K' was changed to '295' -
the value should be numeric and without a unit
designator.

'_diffrn_ambient_temperature' value '295K' was changed
to '295' - the value should be numeric and without a unit
designator.

'_symmetry_cell_setting' value 'Monoclinic ' changed to
'monoclinic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value ' none ' changed
to 'none' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from
2011-04-26.

'_refine_ls_matrix_type' value ' full ' changed to
'full' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_atom_sites_solution_primary' value ' Direct_Methods ' was changed
to 'direct'.

'_atom_sites_solution_hydrogens' value ' Difference-Fourier map ' was
changed to 'difmap'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_original_sg_symbol_H-M      'P 1 21/n 1 '
_cod_original_formula_sum        ' C22 H24 O2 '
_cod_database_code               7110581