Tetrakarbonil(4-tert-bütilpiridin)metal(0) Kompleks Bileşiklerinin Sentezi ve Spektroskopik Karakterizasyonu

Yıl 2020, , 572 - 577, 31.01.2020

Özlem Ünlü , İzzet Amour Morkan

https://doi.org/10.29130/dubited.597918

Öz

Hekzakarbonilmetal(0); M:Cr, Mo, W,
bileşikleri ile sübstitüye piridin (tert-bütilpiridin) arasında,
10 ºC de yapılan fotokimyasal tepkimeler, cis-tetrakarbonil(tert-bütilpiridin)metal(0)
bileşiklerini oluşturmaktadır. Sentezlenen bu organometalik bileşikler yüksek
vakum kullanılarak yeniden kristallendirme yöntemi ile saflaştırılır ve
yapıları FTIR-, ¹H- ve ¹³C-NMR spektroskopileriyle
incelenir. Spektroskopik incelemeler sonucunda elde edilen veriler piridin
ligand halkasının sp² hibritli azotundan zayıf şekilde bağladığını
ortaya koymaktadır. Ayrıca, piridin halkasının 4-konumu üzerindeki
sübstitüentinin boyutunun, piridin ile merkezi atomun koordinasyonunu
engellemediği gösterilmiştir. 

Anahtar Kelimeler

Metal karboniller, Piridin, Fotokimyasal sentez

Destekleyen Kurum

Türkiye Bilimsel ve Teknolojik Araştırma Kurumu ve ve Bolu Abant İzzet Baysal Üniversitesi Bilimsel Araştırma Projeleri

Proje Numarası

TBAG 2146 102T041, BAP 2007.03.03.268

Teşekkür

Bu çalışma Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBITAK, TBAG-2146) ve Bolu Abant İzzet Baysal Üniversitesi Bilimsel Araştırma Projeleri (BAP 2007.03.03.268) tarafından desteklenmiştir.

Synthesis and Spectroscopic Analysis of Tetracarbonyl(4-tert-butylpyridine)metal(0) Complexes

Öz

The photolysis of
hexacarbonylmetal(0); M: Cr, Mo, W, complexes in the presence of a substituted
pyridine ligand  (tert-butylpyridine) at
10 ºC yields the corresponding cis-tetracarbonyl(tert-butylpyridine)metal(0)
complexes. These synthesized organometallic complexes are purified under high
vacuum by recrystallization and their structures are investigated by using IR-,¹H-
and ¹³C-NMR spectroscopies. Spectroscopic investigations reveal that
the pyridine ligand bonded the central atom weakly through the sp²
hybridized nitrogen atom of the ring. In addition to that the size of the
substituent does not hinder the coordination of the pyridine through the central
metal atom.

Anahtar Kelimeler

Metal carbonyls, Pyridine, Photochemical synthesis

Proje Numarası

TBAG 2146 102T041, BAP 2007.03.03.268

Kaynakça

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