PMID- 24473394
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20141020
LR  - 20140225
IS  - 1477-9234 (Electronic)
IS  - 1477-9226 (Linking)
VI  - 43
IP  - 12
DP  - 2014 Mar 28
TI  - Dynamics of H-atom exchange in stable cis-dihydrogen/hydride complexes of 
      ruthenium(II) bearing phosphine and N-N bidentate ligands.
PG  - 4726-33
LID - 10.1039/c3dt52575a [doi]
AB  - Synthesis and characterization of cis,trans-[RuH(eta(2)-H2)(PPh3)2(N-N)][OTf] (N-N 
      = 2,2'-bipyridyl (bpy) 1a, 2,2'-bipyrimidine (bpm) 2a; OTf = trifluoromethane 
      sulfonate (CF3SO3)) complexes are reported. The cis-H2/hydride ligands are 
      involved in H-atom site exchange between the two moieties. This dynamics was 
      investigated by variable temperature NMR spectral studies based on which the 
      mechanism of the exchange process was deduced. The DeltaG( not equal) for the exchange of 
      H-atoms between the eta(2)-H2 and hydride ligands was determined to be around 8 and 
      13 kJ mol(-1), respectively, for 1a and 2a. The H-H distances (d(HH), A) in 
      complexes 1a and 2a have been calculated from the T1(minimum) and (1)J(H,D) and 
      are found to be 1.07 A (slow) and 0.95 A for 1a and 1.04 A (slow) and 0.94 A for 
      2a, respectively. The molecular structure of 1a was determined by X-ray 
      crystallography.
FAU - Bera, Barun
AU  - Bera B
AD  - Department of Inorganic & Physical Chemistry, Indian Institute of Science, 
      Bangalore 560012, India. jagirdar@ipc.iisc.ernet.in.
FAU - Patil, Yogesh P
AU  - Patil YP
FAU - Nethaji, Munirathinam
AU  - Nethaji M
FAU - Jagirdar, Balaji R
AU  - Jagirdar BR
LA  - eng
PT  - Journal Article
PL  - England
TA  - Dalton Trans
JT  - Dalton transactions (Cambridge, England : 2003)
JID - 101176026
EDAT- 2014/01/30 06:00
MHDA- 2014/01/30 06:01
CRDT- 2014/01/30 06:00
PHST- 2014/01/30 06:00 [entrez]
PHST- 2014/01/30 06:00 [pubmed]
PHST- 2014/01/30 06:01 [medline]
AID - 10.1039/c3dt52575a [doi]
PST - ppublish
SO  - Dalton Trans. 2014 Mar 28;43(12):4726-33. doi: 10.1039/c3dt52575a.