Premium
[SnI 8 {Fe(CO) 4 } 4 ] 2+ : Highly Coordinated Sn +II I 8 Subunit with Fragile Carbonyl Clips
Author(s) -
Wolf Silke,
Köppe Ralf,
Block Theresa,
Pöttgen Rainer,
Roesky Peter W.,
Feldmann Claus
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201911126
Subject(s) - chemistry , crystallography , van der waals force , raman spectroscopy , density functional theory , ionic bonding , sni , mössbauer spectroscopy , halide , crystal structure , ion , inorganic chemistry , computational chemistry , molecule , physics , organic chemistry , optics , biochemistry , hydrolysis , acid hydrolysis
[SnI 8 {Fe(CO) 4 } 4 ][Al 2 Cl 7 ] 2 contains the [SnI 8 {Fe(CO) 4 } 4 ] 2+ cation with an unprecedented highly coordinated, bicapped SnI 8 prism. Given the eightfold coordination with the most voluminous stable halide, it is all the more surprising that this SnI 8 arrangement is surrounded only by fragile Fe(CO) 4 groups in a clip‐like fashion. Inspite of a predominantly ionic bonding situation in [SnI 8 {Fe(CO) 4 } 4 ] 2+ , the I − ⋅⋅⋅I − distances are considerably shortened (down to 371 pm) and significantly less than the van der Waals distance (420 pm). The title compound is characterized by single‐crystal structure analysis, spectroscopic methods (EDXS, FTIR, Raman, UV/Vis, Mössbauer), thermogravimetry, and density functional theory methods.