Chlorobis(ethylene)rhodium dimer

Chlorobis(ethylene)rhodium dimer
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.938 Edit this at Wikidata
EC Number
  • 235-145-0
UNII
  • InChI=1S/4C2H4.2ClH.2Rh/c4*1-2;;;;/h4*1-2H2;2*1H;;/p-2
    Key: QPOCZCJMFQWGSP-UHFFFAOYSA-L
  • C=C.C=C.C=C.C=C.[Cl-].[Cl-].[Rh].[Rh]
Properties
C8H16Cl2Rh2
Molar mass 388.93
Appearance red solid
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319
P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Chlorobis(ethylene)rhodium dimer is an organorhodium compound with the formula Rh2Cl2(C2H4)4. It is a red-orange solid that is soluble in nonpolar organic solvents. The molecule consists of two bridging chloride ligands and four ethylene ligands. The ethylene ligands are labile and readily displaced even by other alkenes. A variety of homogeneous catalysts have been prepared from this complex.[1][2]

Preparation and reactions

The complex is prepared by treating an aqueous methanolic solution of hydrated rhodium trichloride with ethylene at room temperature. Rh(III) is reduced with oxidation of ethylene to acetaldehyde:

2 RhCl3(H2O)3 + 6 C2H4 → Rh2Cl2(C2H4)4 + 2 CH3CHO + 4 HCl + 4 H2O

Reflecting the lability of its ligands, the complex does not tolerate recrystallization.[3]

The complex reacts slowly with water to give acetaldehyde. With HCl, it gives RhCl2(C2H2)2−. Rh2Cl2(C2H4)4 catalyzes the dimerization of ethylene to 1-butene.

Carbonylation affords rhodium carbonyl chloride. Treatment with acetylacetone and aqueous KOH gives Rh(acac)(C2H4)2.

References

  1. ^ Hayashi, Tamio; Takahashi, Makoto; Takaya, Yoshiaki; Ogasawara, Masamichi "Catalytic Cycle of Rhodium-Catalyzed Asymmetric 1,4-Addition of Organoboronic Acids. Arylrhodium, Oxa-π-allylrhodium, and Hydroxorhodium Intermediates" Journal of the American Chemical Society 2002, vol. 124, pp. 5052-5058.doi:10.1021/ja012711i
  2. ^ Neely, Jamie M. (2014). "chlorobis(ethylene)rhodium(I) dimer". E-EROS Encyclopedia of Reagents for Organic Synthesis: 1–6. doi:10.1002/047084289X.rn01715. ISBN 9780470842898.
  3. ^ Richard Cramer "Di-μ-chlorotetrakis(ethylene)dirhodium(I), 2,4-pentanedionatobis(ethylene)rhodium(I), and di-μ-chlorotetracarbonyldirhodium(I)" Inorganic Syntheses 1974, vol. 15, pp. 14-18.. doi:10.1002/9780470132463.ch4

Read other articles:

Анна Ивановна (дочь Ивана Грозного)

В Википедии есть статьи о других людях с именем Анна Ивановна. Анна Ивановна Рождение царевны (миниатюра Лицевого летописного свода) Царевна Рождение 10 августа 1549(1549-08-10)Москва (?) Смерть 20 июля 1550(1550-07-20)Москва (?) Место погребения Новодевичий монастырь, церковь Иоакима и Ан...

 

 

Trento

Disambiguazione – Se stai cercando altri significati, vedi Trento (disambigua). Trentocomune Trento – VedutaTrento visione d'insieme LocalizzazioneStato Italia Regione Trentino-Alto Adige Provincia Trento AmministrazioneSindacoFranco Ianeselli (indipendente di centro-sinistra) dal 23-9-2020 TerritorioCoordinate46°04′N 11°07′E / 46.066667°N 11.116667°E46.066667; 11.116667 (Trento)Coordinate: 46°04′N 11°07′E / 46.066...

 

 

العلاقات الأوغندية السويسرية

العلاقات الأوغندية السويسرية أوغندا سويسرا   أوغندا   سويسرا تعديل مصدري - تعديل   العلاقات الأوغندية السويسرية هي العلاقات الثنائية التي تجمع بين أوغندا وسويسرا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة عامة ومرجعية للدولتين: وجه المقارنة...

قزلباش

جندي قزلباشي القزلباش (بالتركية:Kızılbaş)، بالعثمانية التركية وتعني ذو الرؤوس الحمراء، وهي مجموعة من الجنود الشيعة الذين عينتهم الدولة الصفوية في منتصف القرن الخامس عشر الميلادي.[1][2][3] وقد كان يقصد بها السنة العثمانيون كاسم ساخر، ولكن لاحقاً أخذت كعلامة شجاعة م�...

 

 

Luigi Antonio del Palatinato-Neuburg

Questa voce o sezione sull'argomento vescovi tedeschi non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Luigi Antonio del Palatinato-Neuburgarcivescovo della Chiesa cattolicaJan Frans van Douven, Ritratto di Luigi Antonio del Palatinato (1690/1694); olio su tela, 79x64 cm, Galleria Palatina.  Incarichi ricoperti Gran maestro dell'Ordine teutonico (168...

 

 

FamilyMart

Japanese convenience store chain Family Mart redirects here. For the defunct grocery chain in the United States, see A&P Family Mart. FamilyMart Co., Ltd.FamilyMart's headquarters in Shibaura, TokyoNative name株式会社ファミリーマートRomanized nameKabushiki gaisha FamirīMātoCompany typeSubsidiaryIndustryConvenience storesFoundedSeptember 1973; 50 years ago (1973-09) in Sayama, Japan(incorporated September 1, 1981; 42 years ago (1981-09...

1997 New England Patriots season

38th season in franchise history 1997 New England Patriots seasonOwnerRobert KraftHead coachPete CarrollHome fieldFoxboro StadiumResultsRecord10–6Division place1st AFC EastPlayoff finishWon Wild Card Playoffs(vs. Dolphins) 17–3Lost Divisional Playoffs(at Steelers) 6–7Pro BowlersT Bruce ArmstrongQB Drew BledsoeTE Ben CoatesLB Chris SladeST Larry WhighamAP All-ProsLB Chris Slade (2nd team) ← 1996 Patriots seasons 1998 → The 1997 New England Patriots season was t...

 

 

مقاطعة (حوسبة)

هذه المقالة تحتاج للمزيد من الوصلات للمقالات الأخرى للمساعدة في ترابط مقالات الموسوعة. فضلًا ساعد في تحسين هذه المقالة بإضافة وصلات إلى المقالات المتعلقة بها الموجودة في النص الحالي. (أكتوبر 2023)   لمعانٍ أخرى، طالع مقاطعة (توضيح). هذه المقالة بحاجة لصندوق معلومات. فضلً...

 

 

Chiang Rai International Airport

Airport in northern Thailand Mae Fah Luang - Chiang Rai International Airportท่าอากาศยานแม่ฟ้าหลวง เชียงรายIATA: CEIICAO: VTCTSummaryAirport typePublicOwner/OperatorAirports of Thailand (AOT)Royal Thai PoliceServesChiang Rai / PhayaoLocationBan Du, Mueang Chiang Rai, Chiang Rai, ThailandOpened5 August 1992; 31 years ago (1992-08-05)Operating base forThai AirAsiaElevation AMSL390 m / 1,280 ftCoordinates1...

土库曼斯坦总统

土库曼斯坦总统土库曼斯坦国徽土库曼斯坦总统旗現任谢尔达尔·别尔德穆哈梅多夫自2022年3月19日官邸阿什哈巴德总统府（Oguzkhan Presidential Palace）機關所在地阿什哈巴德任命者直接选举任期7年，可连选连任首任萨帕尔穆拉特·尼亚佐夫设立1991年10月27日 土库曼斯坦土库曼斯坦政府与政治 国家政府 土库曼斯坦宪法 国旗 国徽 国歌 立法機關（英语：National Council of Turkmenistan） ...

 

 

Mangog

Marvel Comics fictional character Comics character MangogMangog on the cover of Thor #155 (Aug. 1968).Art by Jack Kirby and Vince Colletta.Publication informationPublisherMarvel ComicsFirst appearanceThor #154 (July 1968)[1]Created byStan Lee (writer)Jack Kirby (artist)In-story informationPartnershipsThanosNotable aliasesOdinAbilitiesSuperhuman strength, stamina, durability and enduranceShapeshifting and energy projection via magic manipulationImmortalitySelf-resurrectionEmpathic abil...

 

 

2012 European Wrestling Championships

Wrestling event 2012 European ChampionshipsHost city Belgrade, SerbiaDates8–11 MarchChampionsFreestyle RussiaGreco-Roman RussiaWomen Ukraine← 20112013 → The 2012 European Wrestling Championships were held in Belgrade, Serbia, from 8 March to 11 March 2012.[1][2][3] Medal table RankNationGoldSilverBronzeTotal1 Russia528152 Ukraine443113 Azerbaijan2046 Turkey20465 Bulgaria14386 Georgia13267 Poland1...

2011 Wichita mayoral election

2011 Wichita mayoral election ← 2007 March 1, 2011 (primary)April 5, 2011 (general) 2015 →   Candidate Carl Brewer Darrell E. Leffew Popular vote 17,285 7,494 Percentage 69.6% 30.2% Mayor before election Carl Brewer Democratic Elected Mayor Carl Brewer Democratic Elections in Kansas Federal government Presidential elections 1864 1868 1872 1876 1880 1884 1888 1892 1896 1900 1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952 1956 1960 1964 1968 197...

 

 

المرفض الأعلى (البيضاء)

يفتقر محتوى هذه المقالة إلى الاستشهاد بمصادر. فضلاً، ساهم في تطوير هذه المقالة من خلال إضافة مصادر موثوق بها. أي معلومات غير موثقة يمكن التشكيك بها وإزالتها. (ديسمبر 2018) المرفض الأعلى تقسيم إداري البلد  اليمن مديرية مديرية الزاهر المسؤولون محافظة محافظة البيضاء السكان ا�...

 

 

Lansdowne, New South Wales

For the town on the mid-north coast of New South Wales, see Lansdowne, New South Wales (Greater Taree). Suburb of Sydney, New South Wales, AustraliaLansdowneSydney, New South WalesLansdowne Bridge over Prospect Creek on the Hume HighwayBoundaries of LansdownePopulation17 (2016 census)[1]Postcode(s)2163Elevation11 m (36 ft)Location27 km (17 mi) west of Sydney CBDLGA(s)City of Canterbury-BankstownState electorate(s)BankstownFederal division(s)Blaxland Subu...

Richard Trevor (bishop)

English bishop (1707–1771) The Right ReverendRichard TrevorBishop of DurhamDioceseDiocese of DurhamIn office1752–1771 (death)PredecessorJoseph ButlerSuccessorJohn EgertonOther post(s)Bishop of St Davids (1744-52)Personal detailsBorn30 September 1707Peckham, SurreyDied9 June 1771LondonBuriedGlynde, SussexNationalityBritishDenominationAnglicanResidenceAuckland CastleGlynde PlaceParentsThomas Trevor, 1st Baron TrevorAnne TrevorAlma materAll Souls' College, OxfordRichard Trevor (30 September ...

 

 

King Street–Old Town station

Washington Metro station King Street – Old Town Northbound Yellow Line train pulling into King Street–Old Town in May 2022General informationLocation1900 King StreetAlexandria, VirginiaCoordinates38°48′24″N 77°03′39″W / 38.80667°N 77.06083°W / 38.80667; -77.06083Owned byWashington Metropolitan Area Transit AuthorityPlatforms1 island platformTracks2Connections Amtrak at Alexandria Union Station VRE at Alexandria Union Station DASH: 30, 31, 32, 33, 102 Me...

 

 

Bages, Pyrénées-Orientales

Commune in Occitania, FranceBages Bages de RossellóCommuneThe town hall in Bages Coat of armsLocation of Bages BagesShow map of FranceBagesShow map of OccitanieCoordinates: 42°36′24″N 2°53′51″E / 42.6067°N 2.8975°E / 42.6067; 2.8975CountryFranceRegionOccitaniaDepartmentPyrénées-OrientalesArrondissementCéretCantonLa Plaine d'IllibérisGovernment • Mayor (2020–2026) Marie Cabrera[1]Area111.95 km2 (4.61 sq mi)Popula...

Мао Цзэдун

Запросы «Мао» и «Великий кормчий» перенаправляются сюда; см. также другие значения терминов Мао и Великий кормчий. В этом китайском имени фамилия (Мао) стоит перед личным именем. Мао Цзэдункит. трад. 毛澤東, упр. 毛泽东 1-й Председатель ЦК Коммунистической партии Китая 20 мар...

 

 

William Asher

American film and television producer, director, and screenwriter (1921–2012) Bill Asher redirects here. For the guitar maker, see Bill Asher (guitar maker). William AsherAsher with his second wife, Elizabeth Montgomery, in 1964BornWilliam Milton Asher(1921-08-08)August 8, 1921New York City, U.S.DiedJuly 16, 2012(2012-07-16) (aged 90)Palm Desert, California, U.S.Resting placeDesert Memorial Park, Cathedral City, CaliforniaOccupationsDirectorproducerscreenwriterYears active1948–1...