Method for Removal of Oxygen from Inert Atmosphere Enclosures

Preparation and Reactivity of Zirconium(III), Niobium(III), and Molybdenum(III) Complexes Stabilized by a Cyclopentadienyl Unit with Pendant Phosphine Donors

“…Indeed, there are many examples of this in the literature. , What is significant about this work is that the examples of complexes of the general type CpMCl 2 (PR 3 ) 2 have been prepared for M = Zr, Nb, and Mo with a modified cyclopentadienyl with two pendant phosphine donors. Other cyclopentadienyl units with one pendant phosphine are known. ,− 56575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106...…”

“…General Procedures. Unless otherwise stated all manipulations were carried out under an atmosphere of dry, oxygen-free dinitrogen or argon by means of standard Schlenk or glovebox techniques . Hexanes, toluene, Et 2 O, and THF were refluxed over CaH prior to a final distillation from either sodium metal or sodium benzophenone ketyl under an Ar atmosphere.…”

Trifunctional Organolithium Initiator Based on 1,3,5-Tris(1-Phenylethenyl)benzene. Synthesis of Functionalized, Three-Armed, Star-Branched Polystyrenes

“…The addition reactions of sec -butyllithium with 3 were performed in an argon atmosphere glovebox. The argon atmosphere was purified by continuous recirculation through towers of molecular sieves and manganous oxide as described by Brown et al To obtain precise stoichiometric control, sec -butyllithium was added stepwise to a benzene solution of 3 at room temperature. Following each addition, SEC analysis using a UV detector was used to monitor the extent of the addition reaction after removing a sample from the reaction and quenching it with degassed methanol.…”

A Vibrating Reed Magnetometer for Microscopic Particles

“…Using this value for the slightly damped reed discussed here we find for the quality factor (10) and for the sensitivity (11) From this fonnula it is seen that (a) the viscosity of the surrounding gas should be low, which is obvious; (b) the length-to-diameter ratio of the reed should be large, which is also obvious; and (c) the material of the reed should be heavy and flexible. An additional requirement is that the reed should not have a magnetic moment.…”