TY - JOUR
T1 - (Bis(terpyridine))copper(II) Tetraphenylborate
T2 - A Complex Example for the Jahn-Teller Effect
AU - Meyer, Andreas
AU - Schnakenburg, Gregor
AU - Glaum, Robert
AU - Schiemann, Olav
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/9/8
Y1 - 2015/9/8
N2 - The surprisingly complicated crystal structure of (bis(terpyridine))copper(II) tetraphenylborate [Cu(tpy)2](BPh4)2 (tpy = 2,2′:6′,2′-terpyridine) consists of six crystallographically independent [Cu(tpy)2]2+ complexes. At ambient temperature, five out of six [CuIIN6] chromophores appear to be compressed octahedra, while at 100 K, four exhibit elongated and only two compressed octahedral geometry. Temperature dependent single crystal UV/vis (100, 298 K) and EPR measurements (20, 100, 298 K) as well as AOM calculations suggest that the octahedra which show apparently compressed octahedral geometry (XRD) result from dynamic Jahn-Teller behavior of elongated octahedra [CuIIN6]. The detailed correlation of structural and spectroscopic data allows an understanding of the strongly solvent-dependent structures of the [Cu(tpy)2]2+ complex in solution. (Graph Presented).
AB - The surprisingly complicated crystal structure of (bis(terpyridine))copper(II) tetraphenylborate [Cu(tpy)2](BPh4)2 (tpy = 2,2′:6′,2′-terpyridine) consists of six crystallographically independent [Cu(tpy)2]2+ complexes. At ambient temperature, five out of six [CuIIN6] chromophores appear to be compressed octahedra, while at 100 K, four exhibit elongated and only two compressed octahedral geometry. Temperature dependent single crystal UV/vis (100, 298 K) and EPR measurements (20, 100, 298 K) as well as AOM calculations suggest that the octahedra which show apparently compressed octahedral geometry (XRD) result from dynamic Jahn-Teller behavior of elongated octahedra [CuIIN6]. The detailed correlation of structural and spectroscopic data allows an understanding of the strongly solvent-dependent structures of the [Cu(tpy)2]2+ complex in solution. (Graph Presented).
UR - http://www.scopus.com/inward/record.url?scp=84941275393&partnerID=8YFLogxK
U2 - 10.1021/acs.inorgchem.5b01157
DO - 10.1021/acs.inorgchem.5b01157
M3 - Article
AN - SCOPUS:84941275393
SN - 0020-1669
VL - 54
SP - 8456
EP - 8464
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 17
ER -