Premium
Synthesis and Crystal Structure of a [Mo 8 O 26 ] 4– Cluster Derivative with 4‐MePyH + . First β‐Octamolybdate Derivative with π–π Stacking
Author(s) -
Aguado R.,
Pedrosa M. R.,
Arnáiz F. J.
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200570003
Subject(s) - stacking , crystallography , hydrogen bond , chemistry , crystal structure , derivative (finance) , cluster (spacecraft) , acetonitrile , pyridine , octahedron , molybdenum , infrared spectroscopy , molecule , inorganic chemistry , medicinal chemistry , organic chemistry , computer science , financial economics , programming language , economics
Dioxobis(pyridine‐2‐thiolate‐N, S)molybdenum(VI) (MoO 2 (Py‐S) 2 ), reacts with of 4‐methylpyridine (4‐MePy) in acetonitrile, by slow diffusion, to afford the title compound. This has been characterized by elemental analysis, IR and 1 H NMR spectroscopy. The X‐ray single crystal structure of the complex is described. Structural studies reveal that the molecular structure consists of a β‐Mo 8 O 26 polyanion with eight MoO 6 distorted edge‐shared octahedra with short terminal Mo–O bonds (1.692–1.714 Å), bonds of intermediate length (1.887–1.999 Å) and long bonds (2.150–2.473 Å). Two different types of hydrogen bonds have been found: N–H···O (2.800–3.075 Å) and C–H···O (3.095–3.316 Å). The presence of π–π stacking interactions and strong hydrogen bonds are presumably responsible for the special disposition of the pyridinic rings around the polyanion cluster.