✦ LIBER ✦

Theoretical study of metal NMR chemical shifts: Tin complexes

✍ Scribed by N. Nakatsuji; T. Inoue; T. Nakao

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 288 KB
Volume: 167
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)85080-v

No coin nor oath required. For personal study only.

✦ Synopsis

Sn chemical shifts have been studied theoretically by an ab initio molecular orbital method. The complexes calculated here are SnMe,_,C!, and SnMe,_,H, (x=0-4). The calculated values of the Sn chemical shifts agree well with the experimental ones. For the SnMe,_,H, compounds, the p mechanism is dominant. For the SnMe,_,C?, compounds, both the p and d mechanisms are important, and even the structural factor in the diamagnetic term is important. This explains the U-shape of the chemical shifts in the SnMe.,_&l, series in contrast to the linear relationship in the SnMe,_,H, series.

📜 SIMILAR VOLUMES

Theoretical study on metal NMR chemical

Theoretical study on metal NMR chemical shifts: Titanium complexes

✍ H. Nakatsuji; T. Nakao 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 301 KB

i chemical shifts for several titanium(W) compounds have been studied theoretically by an ab initio molecular orbital method. The complexes studied here arc TiF,, TiFi-, TiCI,, Tic@, TiBr, and Ti(OMc), (MC: methyl group). The calculated values of the titanium chemical shifts compare well with the ex

NMR studies of cobalt complexes. Theoret

NMR studies of cobalt complexes. Theoretical interpretation of cobalt-59 chemical shifts

✍ Shizuo Fujiwara; Fumikazu Yajima; Akira Yamasaki 📂 Article 📅 1969 🏛 Elsevier Science ⚖ 431 KB

Proton chemical shifts in NMR spectra of

Proton chemical shifts in NMR spectra of diamagnetic metal-aminopolycarboxylate complexes

✍ Pavol Balgavý; Pavol Novomeský; Jaroslav Majer 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 284 KB

The proton chemical shifts of 2-hydroxy-1,3propanediamine-N,N,N',N'-tetraacetic acid and 1,3propanediamine-N,N,N',N'-tetraacetic acid in 1 :I complexes with diamagnetic metal ions have been investigated as a function of the metal ion charge Z and crystal ionic radius r. The chemical shifts correlate

Transition metal NMR chemical shifts and

Transition metal NMR chemical shifts and polarizability effect in organometallic complexes

✍ Alexey N. Egorochkin; Olga V. Kuznetsova; Nadiya M. Khamaletdinova; Yury A. Kurs 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 165 KB

## Abstract The literature data on substituent influence on the ^51^V, ^55^Mn, ^57^Fe, ^59^Co, ^61^Ni, ^95^Mo, ^103^Rh, ^183^W, ^187^Os and ^195^Pt NMR chemical shifts (δ) and on __J__ (M, P; M = Mn, Fe, Mo, Rh, W, Os) coupling constants have been analyzed for 30 series of the organometallic comple

Theoretical investigation on multinuclea

Theoretical investigation on multinuclear NMR chemical shifts of some tris(trifluoromethyl)boron complexes

✍ Jun Zhang; Shuhui Cai; Zhong Chen 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB

## Abstract Tris(trifluoromethyl)boron complexes have unusual properties and may find applications in many fields of chemistry, biology, and physics. To gain insight into their NMR properties, the isotropic ^11^B, ^13^C, and ^19^F NMR chemical shifts of a series of tris(trifluoromethyl)boron comple

ChemInform Abstract: Transition Metal NM

ChemInform Abstract: Transition Metal NMR Chemical Shifts and Polarizability Effect in Organometallic Complexes

✍ Alexey N. Egorochkin; Olga V. Kuznetsova; Nadiya M. Khamaletdinova; Yury A. Kurs 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 15 KB 👁 1 views