Ethylene Complexes of the Early Transition Metals: Crystal Structures of [HfEt4(C2H4)2−] and the Negative-Oxidation-State Species [TaHEt(C2H4)33−] and [WH(C2H4)43−]
Morse, Paige M.; Shelby, Quinetta D.; Kim, Do Young; Girolami, Gregory S.; Organometallics 27 (2008) 984–; doi:10.1021/om701189e

data_4070987
_publ_section_title
;
 Ethylene Complexes of the Early Transition Metals: Crystal Structures of
 [HfEt4(C2H4)2&#x2212;] and the Negative-Oxidation-State Species
 [TaHEt(C2H4)33&#x2212;] and [WH(C2H4)43&#x2212;]
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              984
_journal_paper_doi               10.1021/om701189e
_journal_volume                  27
_journal_year                    2008
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;
 ?
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_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
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'calc w=1/[\s^2^(Fo^2^)+(0.0490P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               4070987