{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,19]],"date-time":"2025-09-19T06:56:34Z","timestamp":1758264994701,"version":"3.41.0"},"reference-count":27,"publisher":"Canadian Science Publishing","issue":"6-7","license":[{"start":{"date-parts":[[2005,6,1]],"date-time":"2005-06-01T00:00:00Z","timestamp":1117584000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Chem."],"published-print":{"date-parts":[[2005,6,1]]},"abstract":"<jats:p> Reaction of Me<jats:sub>3<\/jats:sub>SiONa with [Re(CO)<jats:sub>5<\/jats:sub>Cl] affords the new complex Na[Re<jats:sub>2<\/jats:sub>(CO)<jats:sub>6<\/jats:sub>(\u00b5-OSiMe<jats:sub>3<\/jats:sub>)<jats:sub>3<\/jats:sub>], which could be generated via formation of [Re(CO)<jats:sub>5<\/jats:sub>OSiMe<jats:sub>3<\/jats:sub>] followed by immediate reaction with Me<jats:sub>3<\/jats:sub>SiO<jats:sup>\u0096<\/jats:sup>. Substitution of some CO ligands by phosphines significantly decreases the electrophilicity of the Re(I) center, and therefore hinders further attack by Me<jats:sub>3<\/jats:sub>SiO<jats:sup>\u0096<\/jats:sup>. Thus, fac-[Re(CO)<jats:sub>3<\/jats:sub>(Ph<jats:sub>2<\/jats:sub>PCH<jats:sub>2<\/jats:sub>CH<jats:sub>2<\/jats:sub>PPh<jats:sub>2<\/jats:sub>)OTf] (OTf is the triflate anion) reacts with Me<jats:sub>3<\/jats:sub>SiONa to give fac-[Re(CO)<jats:sub>3<\/jats:sub>(Ph<jats:sub>2<\/jats:sub>PCH<jats:sub>2<\/jats:sub>CH<jats:sub>2<\/jats:sub>PPh<jats:sub>2<\/jats:sub>)OSiMe<jats:sub>3<\/jats:sub>], a molecular model of silica anchored [Re(CO)<jats:sub>5<\/jats:sub>OSi\u2261]. However, substitution of only one CO by triphenylphosphine is not enough to avoid the formation of [Re<jats:sub>2<\/jats:sub>(CO)<jats:sub>6<\/jats:sub>(\u00b5-OSiMe<jats:sub>3<\/jats:sub>)<jats:sub>3<\/jats:sub>]<jats:sup>\u0096<\/jats:sup>. While fac-[Re(CO)<jats:sub>3<\/jats:sub>(Ph<jats:sub>2<\/jats:sub>PCH<jats:sub>2<\/jats:sub>CH<jats:sub>2<\/jats:sub>PPh<jats:sub>2<\/jats:sub>)OSiMe<jats:sub>3<\/jats:sub>] is stable towards hydrolysis, [Re<jats:sub>2<\/jats:sub>(CO)<jats:sub>6<\/jats:sub>(\u00b5-OSiMe<jats:sub>3<\/jats:sub>)<jats:sub>3<\/jats:sub>]<jats:sup>\u0096<\/jats:sup> is readily hydrolyzed to [Re<jats:sub>2<\/jats:sub>(CO)<jats:sub>6<\/jats:sub>(\u00b5-OH)(\u00b5-OSiMe<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>]<jats:sup>\u0096<\/jats:sup>, a molecular model of silica anchored [Re<jats:sub>2<\/jats:sub>(CO)<jats:sub>6<\/jats:sub>(\u00b5-OH)(\u00b5-OSi\u2261)<jats:sub>2<\/jats:sub>]<jats:sup>\u0096<\/jats:sup>, whose structure has been determined by single crystal X-ray diffraction. Key words: surface organometallic chemistry, rhenium, silica, silanolate, molecular model. <\/jats:p>","DOI":"10.1139\/v05-104","type":"journal-article","created":{"date-parts":[[2005,9,7]],"date-time":"2005-09-07T20:24:15Z","timestamp":1126124655000},"page":"1017-1024","source":"Crossref","is-referenced-by-count":7,"title":["Surface organometallic chemistry \u0097 Carbonyl complexes of Re(I) with silanolates as models of silica anchored rhenium carbonyl species"],"prefix":"10.1139","volume":"83","author":[{"given":"Giuseppe","family":"D'Alfonso","sequence":"first","affiliation":[]},{"given":"Claudia","family":"Dragonetti","sequence":"additional","affiliation":[]},{"given":"Simona","family":"Galli","sequence":"additional","affiliation":[]},{"given":"Elena","family":"Lucenti","sequence":"additional","affiliation":[]},{"given":"Piero","family":"Macchi","sequence":"additional","affiliation":[]},{"given":"Dominique","family":"Roberto","sequence":"additional","affiliation":[]},{"given":"Renato","family":"Ugo","sequence":"additional","affiliation":[]}],"member":"155","reference":[{"key":"#cr-split#-p_1\/p_1_1.1","unstructured":"For example, see the following reviews and refs. therein: (a) Y. 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