Degradation of polyetherurethane by subcutaneous implantation into rats. II. Changes of contact angles, infrared spectra, and nuclear magnetic resonance spectra

1995 ◽  
Vol 29 (10) ◽  
pp. 1201-1213 ◽  
Author(s):  
Michio Sato ◽  
Tingfei Xi ◽  
Akitada Nakamura ◽  
Yasushi Kawasaki ◽  
Takashi Umemura ◽  
...  
Geoderma ◽  
2015 ◽  
Vol 247-248 ◽  
pp. 65-72 ◽  
Author(s):  
Mohsen Forouzangohar ◽  
Jeffrey A. Baldock ◽  
Ronald J. Smernik ◽  
Bruce Hawke ◽  
Lauren T. Bennett

1968 ◽  
Vol 46 (24) ◽  
pp. 3879-3891 ◽  
Author(s):  
E. O. Greaves ◽  
C. J. L. Lock ◽  
P. M. Maitlis

The preparations of complexes of the type L2M(RC2R′) (where L = Ph3P, M = Ni, Pd, Pt, R = R′ = CF3; L = Ph3P, M = Ni, Pt, R = R′ = Ph, and R = Ph, R′ = Me; L = Ph3P, M = Pd, Pt, R = R′ = COOMe; and R = R′ = CF3, M = Pd, Pt, L = n-Bu3P, Mc2PhP) are described. From their nuclear magnetic resonance spectra these complexes appear to be approximately planar in solution. The VC≡C observed in their infrared spectra indicate strong bonding of the acetylene to the metal.A new approach to the bonding in metal–acetylene complexes is proposed which can be extended to other π-complexes and which allows some predictions to be made.


Sign in / Sign up

Export Citation Format

Share Document