𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Tuning of through-bond electronic coupling by donor and acceptor substitutions in the [(NH3)5Ru—1,4-dicyanobenzene—Ru(NH3)5]5+ complex

✍ Scribed by C. Joachim

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
523 KB
Volume
185
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

Through-ligand electronic coupling in the [ (NH3),Ru"'-1,4dicyanobenzene-Ru"(NH3)5] '+ complex is calculated depending on the donor or acceptor grafted on the benzene. The coupling strength is first discussed, showing that through-dicyanobutadiene is larger than through-I$-dicyanobenzene coupling. With this ligand, the largest electronic coupling is reached with a full 4NOz substitution on the benzene. Coupling through an asymmetric 2NO,ZNH,-substituted benzene is one order of magnitude lower. This large difference is interpreted using the number and position of the active ligand molecular orbitals relative to the druthenium orbital.

📜 SIMILAR VOLUMES

Structures and Properties of Tris(donor)
Structures and Properties of Tris(donor)-Tris(acceptor)-Substituted Benzenes, 8!!. On the Balance of Steric, Electronic and Hydrogen Bond Effects in 1,3,5-Tris(amino)-2,4,6-Tris(acceptor)-Substituted Benzenes
✍ Jens Wolff, J. ;Gredel, Frank ;Hillenbrand, Daniela ;Irngartinger, Hermann 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 832 KB

## Abstract The conformational properties of triamino‐substituted 1,3,5‐trinitrobenzenes were studied by X‐ray crystallography, dynamic NMR spectroscopy, and semiempirical calculations. As amino substituents all possible combinations of a dialkyl‐, a monoalkylamino, and an amino group were used. Al

Preparation, isolation and electrochemic
Preparation, isolation and electrochemical characterization of cobalt porphyrins with Ru(NH3)52+ complexes coordinated to 4-cyanophenyl substituents in the 5, 10, 15 and 20 positions on the porphyrin ring
✍ BEAT STEIGER; FRED C. ANSON 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 79 KB 👁 1 views

A procedure has been devised by which quantitative coordination of Ru ( NH ~3~)~5~^2+^ groups to the nitrile sites in [5,10,15,20-tetrakis(4-cyanophenyl)porphyrinato]cobalt(II) and [5,10,15,20-tetrakis(4-cyano-2,6-dimethylphenyl)porphyrinato]cobalt(II) can be achieved. The procedure takes advantage