Abstract
Four new homo- and heterometallic metal-organic frameworks (MOFs) based on linear homo/heterotrinuclear nodes, namely, {[NH 2(CH 3) 2] 2[Co 3(FDA) 4(CH 3OH) 2]} n (1), {[NH 2(CH 3) 2] 2[Co 3(FDA) 4] •2DMF} n (2), {[Gd 2Co(FDA) 4(H 2O) 4]•2H 2O} n (3), and {[Dy 2Co(FDA) 4(glycol) 2]•2H 2O} n (4) (H 2FDA = furan-2,5-dicarboxylic acid), were obtained under solvothermal conditions and characterized by single crystal X-ray diffraction, magnetic susceptibility, and luminescence measurements. The building blocks of four MOFs are linear trinuclear clusters stabilized by carboxylic groups, but the three-dimensional frameworks are different. MOFs 1 and 2 are both pcu nets with a point symbol of (4 12.6 3), whereas MOFs 3 and 4 exhibit 3,10T9 and tfz-d nets with the point symbols of (4 18.6 24.8 3)(4 3) 2 and (4 3) 2(4 6.6 18.8 4), respectively. Magnetic susceptibility measurements indicate that there are antiferromagnetic interactions in 1-3, while 4 displays interesting ferromagnetic interactions between Co(II) and Dy(III) ions. Luminescence investigation of 4 shows intense and characteristic emission bands of Dy(III) ions in the solid state.
| Original language | English |
|---|---|
| Pages (from-to) | 2602-2612 |
| Number of pages | 11 |
| Journal | Crystal Growth and Design |
| Volume | 12 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2 May 2012 |
| Externally published | Yes |
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