An iron(II) complex tripodally chelated with 1,1,1-tris(pyridin-2-yl)ethane showing room-temperature spin-crossover behaviour

作者：Ishida Takayuki; Kanetomo Takuya; Yamasaki Masaru

来源：Acta Crystallographica Section C-Structural Chemistry, 2016, 72(11): 797-+.

DOI：10.1107/S2053229616004174

<jats:p>The spin-crossover phenomenon is a reversible low- and high-spin transition caused by external stimuli such as heat. In the novel iron(II) complex salt tetraphenylphosphonium tris(thiocyanato-κ<jats:italic>N</jats:italic>)[1,1,1-tris(pyridin-2-yl)ethane-κ<jats:sup>3</jats:sup><jats:italic>N</jats:italic>,<jats:italic>N</jats:italic>′,<jats:italic>N</jats:italic>′′]ferrate(II), (C<jats:sub>24</jats:sub>H<jats:sub>20</jats:sub>P)[Fe(NCS)<jats:sub>3</jats:sub>(C<jats:sub>17</jats:sub>H<jats:sub>15</jats:sub>N<jats:sub>3</jats:sub>)], the Fe—N bond lengths are in the range 2.027 (2)–2.089 (2) Å, indicating that the specimen consists of comparable molar fractions of the low- and high-spin species at 296 K. A magnetic study confirmed that spin-crossover takes place at around 290 K.</jats:p>

• 出版日期2016-11