Resumen: A ligand derived from 1,3bpp (2-(pyrazol-1-yl)-6-(pyrazol-3-yl)- pyridine) has been prepared to prove that the spin crossover (SCO) of an Fe(II) complex can be blocked by means of intramolecular interactions not related to the crystal field. Calculations show that the blocking is caused by the energy penalty incurred by the rotation of a phenyl ring, needed to avoid steric hindrance upon SCO. Idioma: Inglés DOI: 10.1039/c6dt03047e Año: 2016 Publicado en: Dalton Transactions 45 (2016), 14058-14062 ISSN: 1477-9226 Factor impacto JCR: 4.029 (2016) Categ. JCR: CHEMISTRY, INORGANIC & NUCLEAR rank: 7 / 46 = 0.152 (2016) - Q1 - T1 Factor impacto SCIMAGO: 1.229 - Inorganic Chemistry (Q1)