Four crystal structures of the title complexes havebeen analyzed by X-ray crystallography.
1:C
80H
68N
17Nd,
a= 17.0545(6) Å,
c = 22.807(3) Å, tetragonal,
P4/
ncc,
Z = 4.
2:C
80H
68N
17Gd,
a =17.399(8) Å,
c = 11.377(6)Å, tetragonal,
P42
12,
Z = 2.
3:C
80H
70N
17OHo,
a =18.096(5) Å,
c = 11.079(6) Å, tetragonal,
P42
12,
Z = 4.
4:C
80H
70N
17OLu,
a =18.171(3) Å,
c = 10.987(4) Å, tetragonal,
P4/
nmm,
Z = 2. The[Ln
IIIPc
2]
- and[NBu
n4]
+ions in each crystal stack alternately in a column along the 4-foldaxis. The Ln(III) cation of each[Ln
IIIPc
2]
-iseight-coordinated by two phthalocyanato dianions (Pc). Theinterplanar distances between the two Pc rings havea linear relationship to the ionic radii of the central Ln(III)cations. The skew angles between the two Pc ringsare 6.2, 34.4, 43.2, and 45.0
for the Nd, Gd, Ho, and Lu complexes,respectively. The skew angle seems todepend on the strength of the
-
interaction between the two Pcrings.