Tsalen- and tsalpn-based nickel complexes with aldehydefunctionalities have been prepared (tsalen =
N,N'-ethylenebis(thiosalicylideneaminato)
2- and tsalpn =
N,N'-propane-1,3-diyl(thiosalicylideneaminato)
2-).One ofthe complexes has been structurally characterized: Ni(pftp)(pftp =
N,N-ethylene(6-formyl-4-methyl-2-methyliminatothiophenolato)
2-) crystallizes in themonoclinic space group
C2/
c with
a =28.761(7),
b = 8.582(2),
c = 7.841(4) Å;
= 98.92(3)
, and
Z = 4. Ni(pftp) and Ni(eftp) (efpt =
N,N-ethylene(6-formyl-4-methyl-2-methyliminatothiophenolato)
2-) were used as synthons foracyclic and macrocyclic complexes and a prototypeof each has been structurally characterized. The Schiff basederivative of Ni(pftp) and2-(2-aminoethyl)pyridinegives the acyclic complex, Ni(peptp) (peptp=
N,N-propane-1,3-diyl(6-(
N-(2-ethylpyridyl)iminomethyl)-4-methyl-2-methyliminatothiophenolato)
-) with the two ethylpyridylarms furnishing an "open site", which in this complexis vacant, and a "closed site", in which the Ni
2+ islocated. Ni(peptp) crystallizes in the monoclinic spacegroup
P2
1/
n with
a =10.247(7),
b = 21.886(8),
c =15.662(9) Å;
= 92.58(6)
, and
Z = 4.Schiff base condensationof Ni(pftp) with diaminopropane gave two different macrocyclicdinickel complexes[L
1Ni
2](ClO
4)
2and L
2Ni
2.L
1 and L
2 are the 2 + 2 and 4 + 4macrocycles, respectively, comprising two propylenediamine and twothiocresolunits and four propylenediamine and four thiocresol units,respectively. Crystals of L
2Ni
2(L
2 = (10,23,36,49-tetramethyl-13,26,39,52-tetramercapto-2,6,15,19,28,32,41,45-octaaza-1,7,14,20,27,33,40,46-octaene[7.7.7.7]metacyclophane) are of poor quality and crystallize in the
C2/
c space group with
a =31.517(14),
b =8.980(2),
c = 26.822(12) Å;
= 117.17(2)
, and
Z = 4.