Synthesis of Double and Quadruple Butterfly Fe/E Cluster Complexes via a New Type of Selenium-Centered Anions (μ-RE)(μ-Se-)[Fe2(CO)6]2(μ4-Se) (E = S, Se, Te) Derived from Novel Reaction of [(μ-RE)(μ-CO)[Fe2(CO)6]- with (μ-Se2)Fe2(CO)6. Crystal Structures of μ4-Se-Containing Double Clusters (μ-EtS)(μ-PhCH2Se)[Fe2(CO)6]2(μ4-Se), (μ-p-MeC6H4Se)(μ-MeSe)[Fe2(CO)6]2(μ4-Se), and (μ-p-MeC6H4Te)(μ-MeSe)[Fe2(CO)6]2(μ4-Se)
Citations Over TimeTop 24% of 2001 papers
Abstract
The [Et3NH]+ or [MgBr]+ salts of anions [(μ-RE)(μ-CO)Fe2(CO)6]- (1, E = S, Se, Te) reacted with (μ-Se2)Fe2(CO)6 followed by treatment of the [Et3NH]+ or [MgBr]+ salts of the intermediate selenium-centered anions (μ-RE)(μ-Se-)[Fe2(CO)6]2(μ4-Se) (3) with monohalide PhCH2Br or MeI to give a series of double butterfly Fe/E cluster complexes (μ-RE)(μ-R1Se)[Fe2(CO)6]2(μ4-Se) (4, RE = EtS, R1 = PhCH2; 5, t-BuS, PhCH2; 6, p-MeC6H4Se, PhCH2; 7, p-MeC6H4Se, Me; 8, p-MeC6H4Te, PhCH2; 9, p-MeC6H4Te, Me). Similarly, reaction of the in situ prepared [Et3NH]+ salt of the intermediate selenium-centered anion (μ-t-BuS)(μ-Se-)[Fe2(CO)6]2(μ4-Se) with dihalide 1,2-(BrCH2)2C6H4 or 1,3-(BrCH2)2-5-MeC6H3 afforded quadruple butterfly Fe/E cluster {(μ-t-BuS)[Fe2(CO)6]2(μ4-Se)}2(μ-1-SeCH2C6H4CH2Se-2-μ) (10) or double butterfly Fe/E cluster (μ-t-BuS)[(μ-1-SeCH2-3-BrCH2-5-MeC6H3)[Fe2(CO)6]2 (μ4-Se) (11) and quadruple butterfly Fe/E cluster {(μ-t-BuS)[Fe2(CO)6]2(μ4-Se)}2(μ-1-SeCH2-5-MeC6H3CH2Se-3-μ) (12), respectively. All the new products 4−11 have been characterized by elemental analysis, IR, 1H and 77Se NMR spectroscopy, and for 4, 7, and 9 single-crystal X-ray diffraction techniques.
Related Papers
- → Development and application of a HPLC-ICP-MS method to determine selenium speciation in muscle of pigs treated with different selenium supplements(2019)84 cited
- → Selenium Supplementation of Naturally High Selenium Diets for Swine(1973)27 cited
- Distribution of selenium in selenite-enriched soybean(2014)
- Study of selenium application on absorption and transformation of selenium in Cardamine violifolia(2014)
- → ИСПОЛЬЗОВAНИЕ ПОТЕНЦИAЛA СОЦИAЛЬНЫХ ПAРТНЕРОВ В ПОДГОТОВКЕ БУДУЩИХ ПЕДAГОГОВ(2024)