Silver(I) and copper(I) adducts of a tris(pyrazolyl)borate decorated with nine trifluoromethyl groups.
Silver and copper ethylene adducts and the silver carbonyl complex of the tris(pyrazolyl)borate [HB(3,4,5-(CF(3))(3)Pz)(3)](-)  (which is based on one of the most acidic pyrazoles known) have been synthesized. (13)C NMR resonance signals of metal-bound ethylene carbon atoms of [HB(3,4,5-(CF(3))(3)Pz)(3)]Ag(C(2)H(4)) and [HB(3,4,5-(CF(3))(3)Pz)(3)]Cu(C(2)H(4)) appear at δ 111.6 and 94.9, respectively. The CO stretching frequency of the silver adduct [HB(3,4,5-(CF(3))(3)Pz)(3)]Ag(CO) is significantly higher than that of free CO, but it appears at a region less sensitive to the ligand electronic effects of tris(azolyl)borate silver adducts.
Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States.
Naleen B
NB
Jayaratna
Igor I
II
Gerus
Roman V
RV
Mironets
Pavel K
PK
Mykhailiuk
Muhammed
M
Yousufuddin
H V Rasika
HV
Dias
D001881:Borates / Q000737:chemistry*; D005617:Chlorofluorocarbons, Methane / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011720:Pyrazoles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*
D001881:Borates; D005617:Chlorofluorocarbons, Methane; D009942:Organometallic Compounds; D011720:Pyrazoles; D012834:Silver; D003300:Copper; C009554:fluoroform