Reversible carboxylation of N-heterocyclic carbenes.
Duong, Hung A; Tekavec, Thomas N; Arif, Atta M; Louie, Janis; Chemical communications (Cambridge, England)  (2004) 112–113; doi:10.1039/b311350g

data_7102398
_publ_section_title
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 Reversible carboxylation of N-heterocyclic carbenes.
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_journal_issue                   1
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              112
_journal_page_last               113
_journal_paper_doi               10.1039/b311350g
_journal_year                    2004
_chemical_formula_sum            'C28 H36 N2 O2'
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?
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_diffrn_ambient_temperature      150(1)
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_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
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_exptl_absorpt_coefficient_mu    0.068
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_exptl_crystal_colour            colorless
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1218P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_gt                2525
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;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7102398