
TY  - JOUR
A1  - Mak, TCW 
A1  - Yip, WH 
A1  - Kennard, CHL 
A1  - Smith, G 
A1  - Oreilly, EJ 
T1  - Univalent Metal Complexes of (Perfluorophenoxy)acetic Acid. The Crystal Structures of (2,3,4,5,6-Pentafluorophenoxy)acetic Acid, Bis-&#956;-[(2,3,4,5,6-pentafluorophenoxy)acetato-O,O']-bissilver(I) and <I>catena</I>-Bis-&#956;-[(2,3,4,5,6-Pentafluorophenoxy)acetato-O]-bismercury(I)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1988
VL  - 41
IS  - 5
SP  - 683
EP  - 691
KW  - 
UR  - https://doi.org/10.1071/CH9880683 
N2  - The crystal structures of perfluorophenoxyacetic acid [(2,3,4,5,6- pentafluorophenoxy )acetic acid] and its anhydrous complexes with silver(I) and mercury(I) have been determined by X-ray diffraction and refined to residuals R = 0.046, 0.042 and 0.104 for 1235, 1789 and 2750 observed reflections respectively. The acid forms the usual hydrogen- bonded cyclic dimers [O---O, 2.705(3)&#506;] with the oxyacetic acid side- chain synclinally oriented. Crystals age triclinic, space group P&#299; with Z 2 in a cell of dimensions a 7.479(1), b 7.592(2), c 8.463(2)&#506;,&#945; 80.15(2),&#946; 85.34(2),&#947; 61.31(1)&#506;. The silver complex, [Ag2L2],(1), has crystals with a 5.992(3), b 30.22(2), c 5.277(2)&#506;, &#946; 106.42(5)&#176;, space group P21/a and Z 2. The bis-carboxylato (O,O&#8242;) dimers have Ag-Ag 2.943(1)&#506; with Ag-O, 2.203, 2.230(3)&#506; and O-Ag-O 161.6(2)&#176;. The complex with mercury(I), [Hg2L2]n, (2), is centrosymmetric with the usual linear O-Hg-Hg-O-bonds [Hg-Hg, 2.514(1)&#506;; Hg-O, 2.13(1)&#506;; O-Hg-Hg, 173.9(2)&#176;]. Longer peripheral bonds to Hg [Hg-O, 2.63(1)&#506;] produce a polymeric structure. Crystals of (2) are triclinic, space group P&#299; with Z 1 in a cell of dimensions a 5.038(1), b 5.970(1), c 15.774(6)&#506;, &#945; 80.77(2),&#946; 86.42(2),&#947; 84.38(2)&#176;. 
ER  -

