In the last part, the reactions catalyzed by inherent chiral ortho-metalated dirhodium(II)/phosphine complexes are also discussed. Graphical abstract This review summarizes the ligand effect of N-heterocyclic carbenes or phosphines of dirhodium(II), which are located at the axial position(s) of ...
Electroabsorption or Stark spectroscopy has been used to evaluate the systems (NC) 5M II–CN–Ru III(NH 3) 5 1 and (NC) 5M II–CN–Ru III(NH 3) 4py 1, where M II=Fe II or Ru II. When a pyridine ligand is present in the axial position on the Ru III acceptor, the effective...
It should be noted that the orientations of x- and y-axis were not well defined (Fig. 2e), because the tensor has axial symmetry due to the symmetric structure of the CLaNP-514,15. PCS-based characterization of ligand-driven conformational changes of MurD. Yb3+-induced PCSs were ...
the HO-Pt/LDH sample was re-immersed into KCl solution, as expected, the −Cl axial ligand can be recovered (denote as R-Cl-Pt/LDH) due to the strong binding affinity of halogens on Pt. Worth noting, the loadings of Pt in Cl-Pt/LDH, HO-Pt/LDH and...
The values of K for the two azoles decreases in the order X = CN > > vinyl. This shows that the ligands coordinated at the trans position in the substitution site have a significant effect on the value of K.doi:10.1080/00958972.2010.503808Hassanin, Hanaa A....
energy of this transition is in the order NO3– ~ OH2 < Cl– << NCCH3, and this is as expected since in the NCCH3 structure the axial donor (N7) has the smallest interaction (longest axial bond, see above, the NO3-structure has two axial donors) in the whole set of structures. ...
MnIII tetraarylporphyrins bearing either a heterocyclic nitrogen base axial ligand or a carboxylic acid group, or both, covalently bonded to the porphyrin through a single flexible chain, have been synthesized. Their basic frame is that of the robust tetrakis(2, 6-dichlorophenyl)porphyrin, and ...
1994 . Novel axial ligand interchange in cytochrome c : Incorporation of a histidine at position 82 leads to displacement of the wild-type methionine-80 ligand . J Am Chem Soc 116 : 3111 – 3112 .Hawkins, B.K., Hilgenwillis, S., Pielak, G.J., and Dawson, J.H. 1994. Novel axial...
Derivatization of the aliphatic ring on in the R2 position was explored to reduce HBDs as well as modify the lipophilicity. The lipophilicity of the molecule was modified by adding nitrogen in either one or both of the aromatic rings. A library of over 150 compounds were synthesized based on ...
With the nitride and imide complexes bearing the PNP ligand in hand, we have investigated their catalytic activity towards the reduction of molecular dinitrogen into ammonia. When 2 (0.020 mmol) was used as a catalyst in the presence of excess amounts of CoCp2 (0.72 mmol) and [LutH]OTf (...