Six new coordination polymers, [Eu(1,2-BDC)(1,2-HBDC)(phen)(H
2O)]
n (
1), [Eu
2(1,3-BDC)
3(phen)
2(H
2O)
2]
n·4
nH
2O(
2), [Eu(1,4-BDC)
3/2(phen)(H
2O)]
n (
3), [Yb
2(1,2-BDC)
3(phen)(H
2O)
2]
n·3.5
nH
2O (
4), [Yb
2(1,3-BDC)
3(phen)
1/2]
n (
5), and[Yb
2(1,4-BDC)
3(phen)
2(H
2O)]
n (
6), were synthesized by hydrothermal reactions of lanthanide chlorides with threeisomers of benzenedicarboxylic acid (H
2BDC) and 1,10-phenanthroline (phen), and characterized by single-crystalX-ray diffraction.
1 has a 2-D herringbone architecture with a Z-shaped cavity.
2 and
5 have different 3-D networks,but both are formed by 1,3-BDC anions bridging metal centers (Eu or Yb) via carboxylate groups.
3 and
6 possesssimilar layer structures which are further constructed to form 3-D networks by hydrogen bonds and/or
![](/images/gifchars/pi.gif)
-
![](/images/gifchars/pi.gif)
aromaticinteractions.
4 comprises 1-D chains that are further interlinked via hydrogen bonds, resulting in a 3-D network. Inthe three europium complexes, all the europium ions are eight-coordinated, while the coordination numbers of theytterbium ions in other three-coordination polymers range from six to eight. Crystal data: for
1, monoclinic, spacegroup
P2
1/
c, with
a = 12.565(6) Å,
b = 16.005(8) Å,
c = 12.891(6) Å,
![](/images/gifchars/beta2.gif)
= 102.173(8)
![](/images/entities/deg.gif)
, and
Z = 4; for
2,monoclinic, space group
P2
1/
c, with
a = 20.979(4) Å,
b = 11.5989(19) Å,
c = 20.810(3) Å,
![](/images/gifchars/beta2.gif)
= 110.391(3)
![](/images/entities/deg.gif)
, and
Z = 4; for
3, triclinic, space group
P![](/images/entities/onemacr.gif)
, with
a = 10.331(5) Å,
b = 10.887(5) Å,
c = 11.404(5) Å,
![](/images/gifchars/alpha.gif)
= 107.660(7)
![](/images/entities/deg.gif)
,
![](/images/gifchars/beta2.gif)
= 91.787(7)
![](/images/entities/deg.gif)
,
![](/images/gifchars/gamma.gif)
= 112.946(6)
![](/images/entities/deg.gif)
, and
Z = 2; for
4, triclinic, space group
P![](/images/entities/onemacr.gif)
, with
a = 11.517(5) Å,
b = 13.339(5)Å,
c = 13.595(6) Å,
![](/images/gifchars/alpha.gif)
= 87.888(7)
![](/images/entities/deg.gif)
,
![](/images/gifchars/beta2.gif)
= 67.759(6)
![](/images/entities/deg.gif)
,
![](/images/gifchars/gamma.gif)
= 68.070(6)
![](/images/entities/deg.gif)
, and
Z = 2; for
5, orthorhombic, spacegroup
C222
1, with
a = 8.174(2) Å,
b = 24.497(7) Å,
c = 29.161(8) Å, and
Z = 8; for
6, triclinic, space group
P![](/images/entities/onemacr.gif)
,with
a = 10.349(3) Å,
b = 11.052(3) Å,
c = 19.431(6) Å,
![](/images/gifchars/alpha.gif)
= 105.464(4)
![](/images/entities/deg.gif)
,
![](/images/gifchars/beta2.gif)
= 91.300(5)
![](/images/entities/deg.gif)
,
![](/images/gifchars/gamma.gif)
= 93.655(5)
![](/images/entities/deg.gif)
, and
Z = 2. The magnetic properties of
1 and
4 were investigated. The photophysical properties of
1 were also studied.