A New Organically Templated Zinc Phosphite Synthesized in Phosphorous Acid Flux and Its Hydrothermal Analogue

A new organically templated zinc phosphite, (H<sub>2</sub>bbp)<sub>2</sub>·Zn<sub>6</sub>(HPO<sub>3</sub>)<sub>8</sub> (<b>1</b>) (bbp = 1,3-bis(4-pyridyl)propane), has been synthesized in a water-free flux of H<sub>3</sub>PO<sub>3</sub>. This compound possesses a new layered structure different from the analogue obtained in the corresponding hydrothermal synthesis, Zn(bbp)<sub>0.5</sub>(HPO<sub>3</sub>)·0.5H<sub>2</sub>O (<b>2</b>). Crystal data:  <b>1</b>, monoclinic, <i>P</i>2<sub>1</sub>/<i>c</i>, <i>a</i> = 9.3364(5) Å, <i>b</i> = 14.8119(7) Å, <i>c</i> = 33.6668(8) Å, β = 91.004(3)°, <i>V</i> = 4655.1(4) Å<sup>3</sup>, <i>Z</i> = 4; <b>2</b>, monoclinic, <i>P</i>2/<i>n</i>, <i>a</i> = 11.392(4) Å, <i>b</i> = 5.199(2) Å, <i>c</i> = 15.863(6) Å, β = 106.329(5)°, <i>V</i> = 901.5(6) Å<sup>3</sup>, <i>Z</i> = 4.