New tridentate ether-phosphine {P, 2O} and ether-phosphine oxide {OP, 2O} ligands with P and O donor-atoms have been synthesized starting from ClCH₂CH(OCH₃)₂. The oxidation process of Ph₂PCH₂CH(OCH₃)₂ to its oxide derivative Ph₂P(O)CH₂CH(OCH₃)₂ was monitored by ³¹P NMR for the first time. The desired ligands and their Co(II) complexes structures were deduced from IR, EA, MS, NMR, UV–Vis., TG/DTG and XRD physical measurements. The tridentate chelating coordination behavior of the ether-phosphine wasn't detected leading only to the mono-dentate coordination mode through the phosphorous atoms to set up a X₂Co[η¹-Ph₂PCH₂CH(OCH₃)₂]₂ as final isomer formula (X = Cl or Br). The Cl₂Co[η¹-Ph₂PCH₂CH(OCH₃)₂]₂ isomer belongs to complex 1 was supported by single crystal measurement. Polar/non-polar intermolecular short contacts were detected by XRD and Hirshfeld surface theoretical analysis.

Keywords

• Cobalt(II) complexes; 
• P∼O hemilabile ligands; 
• XRD; 
• Hirshfeld surface analysis

العنوان

Journal of Molecular Structure

الناشر

Elsevier

بلد الناشر

الولايات المتحدة الأمريكية

Indexing

Scopus

معامل التأثير

1,78

نوع المنشور

مطبوع فقط

المجلد

1134

السنة

2017

الصفحات

17-24