The molecular structure of 4-tert-butyl-π-(tricarbonylchromium)benzoic acid

Exchange Interaction Mediated by O−H···O Hydrogen Bonds: Synthesis, Structure, and EPR Study of the Paramagnetic Organometallic Carboxylic Acid (η7-C7H7)V(η5-C5H4COOH)

“…The structural parameters of the trovacenyl units (Tables and ) are virtually identical in 2 • and 3 • • since the metal ring−centroid distances of 146 and 191 pm, respectively, are governed by the constancy of the metal−carbon bond lengths . The hydrogen bond motif is that of an eight-membered ring [graph set (8) 9a ]; the distances O−H, H···O and O−H···O are very similar to those of butylbenzoic acid 9b and its Cr(CO) 3 adduct 9c…”

Synthesis and Structures of Cadmium(II) Complexes with (η6‐Benzenecarboxylate)tricarbonylchromium

“…[4] The derivative (benzoic acid)tricarbonylchromium was first reported in 1958 by Fischer et al [5,6] Although these compounds have been known for a long time, the number of structurally characterized derivatives is very limited. To the best of our knowledge, besides [(η 6 -C 6 H 5 COOH)Cr(CO) 3 ] and [{η 6 -p-C 6 H 4 (COOH) 2 }Cr(CO) 3 ] [7][8][9] and some related group 6 compounds, [9,10] only the group 4 metal benzenecarboxylate complexes [(η 5 -C 5 H 5 ) 2 TiX{(μ-O 2 CC 6 H 5 )Cr-(CO) 3 }] (X = Cl, Br, CH 3 ) and [(η 5 -C 5 H 5 ) 2 M{(μ-O 2 CC 6 H 5 )-Cr(CO) 3 } 2 ] (M = Ti, Zr) [11] had been structurally characterized before we started our investigation last year (see below). [12,13] Recently, (benzoic acid)tricarbonylchromium and its derivatives have been used as building blocks for the construction of polymeric materials.…”

Synthesis and Structures of Zinc(II) and Cadmium(II) Complexes with (η6‐Benzenecarboxylate) Chromium Tricarbonyl and Pyrazole Derivatives

“…In contrast to the coordination chemistry of ferrocenyl‐substituted carboxylic acid16 the coordination chemistry of ( η 6 ‐benzenecarboxylate) chromium tricarbonyl as metalloligand is not well explored. Before we started our investigations in this area last year,17 beside [{ η 6 ‐C 6 H 5 COOH}Cr(CO) 3 ] and [{ η 6 ‐ p ‐C 6 H 4 (COOH) 2 }Cr(CO) 3 ]15b,18 and some related group 6 compounds18b,19 only the group 4 metal benzenecarboxylate complexes [( η 5 ‐C 5 H 5 ) 2 Ti X {( μ ‐O 2 CC 6 H 5 )Cr(CO) 3 }] ( X = Cl, Br, CH 3 ) and [( η 5 ‐C 5 H 5 ) 2 M ( μ ‐O 2 CC 6 H 5 )Cr(CO) 3 ] 2 ( M = Ti, Zr) were known 20. Recently, Long and co‐workers reported on the synthesis of [Zn 4 O{( η 6 ‐1,4‐benzenedicarboxylate)Cr(CO) 3 }], which is a porous metal‐organic framework 21.…”