Reversible switching of the electronic ground state in a pentacoordinated Cu(II) complex.

نویسندگان

  • Ashok Sasmal
  • Sandeepta Saha
  • Carlos J Gómez-García
  • Cédric Desplanches
  • Eugenio Garribba
  • Antonio Bauzá
  • Antonio Frontera
  • Reum Scott
  • Ray J Butcher
  • Samiran Mitra
چکیده

An easy reversible switching of the electronic ground state in a pentacoordinated copper(II) complex is reported for the first time. The simple protonation of a carboxylic group in a Cu(II) complex with a {dx(2)-y(2)}(1) electronic configuration leads to a flip of the ground electronic configuration from {dx(2)-y(2)}(1) to {dz(2)}(1) in the metal ion.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ESR spectra of copper(II) complexes in the solids

The ESR spectra of Cu(sal)2 • 4H 20, Cu(sal)2(2-pycar)2 and Cu(sal)2(3-pycar)2 (sal = salicylate ion; pycar = pyridinemethanol) at 77 К were stud­ ied. The spin Hamiltonian parameters indicate that the unpaired electron is in the antibonding y/b]g molecular orbital. The ESR spectra of pentacoordinated Cu(II) complexes of the [Cu(phen)2X]C104 (phen = 1,10-phenanthroline; X = CI, Br) exhibit axia...

متن کامل

An Investigation of Z-in Distortion in Mononuclear Cu(II) Complex with Terpyridine Ligands, [Cu(terpy)2](PF6)2

The first crystal structure of  [Cu(terpy)2](PF6 )2 , where terpy=2,2':6',2"-terpyridine is reported. Green crystals of  [Cu(terpy)2](PF6 )2 were grown by ether diffusion into an acetonitrile solution of the complex. Crystal structure of this complex is tetragonal ( space group: P21c ...

متن کامل

Cytotoxic and anticancer studies of an oxygen and nitrogen donor novel Schiff base ligand and its copper (II) complex

A selected solid complex of the Schiff base ligand derived from Glutaric anhydride with Cu(II) ion was synthesized and characterized by FT-IR, Electronic, ESR Spectral Analyses, Magnetic susceptibility and Molar Conductance Measurements. The disappearance of ν(O-H) hydroxyl band of the phenolic and the lowering shift of the stretching frequency of the ν(CH=N) azomethine band in the ligand after...

متن کامل

Structure and Chromotropic Properties of 2-Picolylamine-Ni(II) Complex

A symmetric complex [NiL2(H2O)2]Cl2, where L = 2-picolylamine was synthesized and characterized by spectroscopic and structural methods. Single crystal X-ray studies reveal that the Ni(II) center located in a pseudo-octahedral N4O2 environment with bidentate ligands L positioned in basal and two water molecules in the apical position. The complex is solvatochromic, ionochromic and thermochromic...

متن کامل

Improving the stability and inertness of Cu(ii) and Cu(i) complexes with methylthiazolyl ligands by tuning the macrocyclic structure.

A tacn based ligand bearing two methylthiazolyl arms (no2th) was synthesized with the aim to find ligands forming very stable and inert complexes with Cu(ii) and Cu(i) in aqueous medium for radiopharmaceutical applications. The no2th ligand was efficiently prepared following the orthoamide intermediate synthesis. The complexes with Cu(2+) and Zn(2+) were obtained and analyzed by X-ray diffracti...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 49 71  شماره 

صفحات  -

تاریخ انتشار 2013