Pentacyanocobaltate

Pentacyanocobaltate
Identifiers
3D model (JSmol)
  • InChI=1S/5CN.Co/c5*1-2;/q5*-1;+2
    Key: YOZCCRZCYZQCAC-UHFFFAOYSA-N
  • [N-]#C[Co+2](C#[N-])(C#[N-])(C#[N-])C#[N-]
Properties
C5CoN53−
Molar mass 189.025 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

In chemistry, pentacyanocobaltate is the coordination complex with the formula [Co(CN)5]3−. When crystallized with a quaternary ammonium cation, it can be obtained as a yellow solid. Pentacyanocobaltate attracted attention as an early example of a metal complex that reacts with hydrogen. It contains low-spin cobalt(II), with a doublet ground state.

Synthesis and structure

Aqueous solutions of pentacyanocobaltate are produced by the addition of five or more equivalents of a cyanide salt to a solution of a cobalt(II) salt. Initially this reaction produces insoluble cobalt dicyanide, but this solid dissolves in the presence of the excess cyanide. Pentacyanocobaltate forms within seconds.[1] When prepared using a quaternary ammonium (quat) cyanide, crystals can be obtained with the formula (quat)3[Co(CN)5]. According to X-ray crystallography, the salt features square pyamidal [Co(CN)5]3−.[2]

Reactions

Solutions of [Co(CN)5]3− undergo a variety of reactions. The complex attracted attention in the 1940s for its reactivity toward hydrogen, which is now understood to produce a cobalt hydride:[1]

2[Co(CN)5]3− + H2 → 2 [Co(CN)5H]3−

When allowed to stand as a dilute solution for several minutes, the complex reacts with water to give two Co(III) derivatives:

2[Co(CN)5]3− + H2O → [Co(CN)5H]3− + [Co(CN)5OH]3−

In concentrated solution, the complex dimerizes:

2[Co(CN)5]3− → [(NC)5Co−Co(CN)5]6−

With benzyl chloride and related alkylating agents, Co(III) alkyls are formed:[3]

2[Co(CN)5]3− + C6H5CH2Cl → [Co(CN)5CH2C6H5]3− + [Co(CN)5Cl]3−

References

  1. ^ a b Kwiatek, Jack (1968). "Reactions Catalyzed by Pentacyanocobaltate(II)". Catalysis Reviews. 1: 37–72. doi:10.1080/01614946808064700.
  2. ^ Brown, Leo D.; Raymond, Kenneth N. (1975). "Structural Characterization of the Pentacyanocobaltate(II) Anion in the Salt Tris(diethyldiisopropylammonium) Pentacyanocobaltate(II)". Inorganic Chemistry. 14 (11): 2590–2594. doi:10.1021/ic50153a002.
  3. ^ Chock, Pwen Boon; Halpern, Jack (1969). "Reactions of Pentacyanocobaltate(II) with Some Organic Halides". Journal of the American Chemical Society. 91 (3): 582–588. doi:10.1021/ja01031a010.

Read other articles:

Akini Jing

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Desember 2023. Untuk pesepak bola Tiongkok, lihat Zhu Jing (pesepak bola). Ini adalah nama Tionghoa; marganya adalah Zhu. Akini Jing朱婧汐Nama lahirYue Hanzan 月罕瓒Nama lainJING, Zhu Jingxi, Zhu Jing, June ZhuLahir18 April 1988 (umur 35)Yunnan, TiongkokG...

 

Labne

LabneLabne dengan minyak zaitunNama lainchak(k)a, yogurt Yunani, labneh, suzma, keju yogurtJenisYogurtTempat asalTimur Tengah atau Asia TengahDaerahAsia Barat, Selatan, dan Tengah; Eropa TenggaraBahan utamaYogurtEnergi makanan(per porsi )457 kJ (109 kcal) per 100 g[1] kkalSunting kotak info • L • BBantuan penggunaan templat ini  Media: Labne Labne, yogurt Yunani,[2] keju yogurt, atau labneh (Arab: لبنةcode: ar is deprecated labnah, dibaca LEB-ne...

 

علي باي الثالث

علي باي الثالث   معلومات شخصية الميلاد 14 أغسطس 1817  المرسى  الوفاة 11 يونيو 1902 (84 سنة)   المرسى  مواطنة بايلك تونس (–12 مايو 1881) الحماية الفرنسية في تونس (12 مايو 1881–)  الزوجة للاّ قمر  الأولاد محمد الهادي باشا بايأحمد باي بن علي باي  الأب حسين باي بن محمد  إخ�...

Battle of Maldon

Battle near Maldon, Essex CE This article is about the battle. For the poem, see The Battle of Maldon. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Battle of Maldon – news · newspapers · books · scholar · JSTOR (April 2017) (Learn how and when to remove this template message) Battle of MaldonPart of the V...

 

State Trooper (TV series)

American crime drama State TrooperRod Cameron as Rod Blake, 1957GenreWestern/Crime dramaWritten by Fenton Earnshaw Lawrence Kimble Leslie McFarlane Barry Shipman Steven Thornley Starring Rod Cameron Robert Armstrong Country of originUnited StatesOriginal languageEnglishNo. of seasons3No. of episodes104 (list of episodes)ProductionProducerRichard IrvingCamera setupSingle-cameraRunning time30 minutesProduction companyRevue StudiosOriginal releaseNetworkSyndicationReleaseSeptember 25, 1956 ...

 

Para Naga

Para NagaJejara NagaLanguagesPara languageRelated ethnic groupsTangkhul Naga, Makury Naga, Other Naga people The Para people, also known as the Para Naga, are a Tibeto-Burmese ethnic group inhabiting mostly in the Naga Self-Administered Zone in Myanmar.[1][2] They are one of the major Naga peoples of Myanmar and mostly inhabit the area around Lay Shi Township.[3] References ^ S. R. Tohring (2010). Violence and identity in North-east India: Naga-Kuki conflict. Mittal Pu...

CEV Champions League 2020-2021 (femminile)

CEV Champions League 2020-2021 Competizione Champions League Sport Pallavolo Edizione 61ª Organizzatore CEV Date dal 22 settembre 2020al 1º maggio 2021 Partecipanti 29 Risultati Vincitore Imoco(1º titolo) Secondo VakıfBank Statistiche Miglior giocatore Paola Egonu Miglior marcatore Isabelle Haak (236) Incontri disputati 89 Cronologia della competizione 2019-2020 2021-2022 Manuale La CEV Champions League 2020-2021 si è svolta dal 22 settembre 2020 al 1º maggio 202...

 

De Havilland Dove

British short-haul airliner produced 1946–1967 DH.104 Dove A 1949 de Havilland Dove (2017 air show) Role Short-haul airlinerType of aircraft National origin United Kingdom Manufacturer de Havilland First flight 25 September 1945; 78 years ago (1945-09-25) Status Limited service Produced 1946–1967 Number built 544[1] Developed into de Havilland Heronde Havilland Australia DHA-3 Drover The de Havilland DH.104 Dove is a British short-haul airliner developed and manu...

 

Railnews

This article is about the British newspaper. For the former American magazine, see Pacific RailNews. RailnewsEditorSim HarrisFormer editorsPaul Whiting, Keith Horrox (1963–1989)CategoriesRail transportFrequencyMonthlyPublisher1963–96: British Rail1997–present: Railnews LtdFounderBritish Railways BoardFirst issueJuly 1963CountryEnglandBased inWellingboroughLanguageEnglishWebsitewww.railnews.co.uk Railnews is a national monthly newspaper and news website for the British railway network. C...

Сибирский горный козёл

Сибирский горный козёл Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:ЧелюстноротыеНадкласс:ЧетвероногиеКлада:АмниотыКлада:СинапсидыКла�...

 

Сиротинская (станица)

У этого термина существуют и другие значения, см. Сиротинская. СтаницаСиротинская 49°15′20″ с. ш. 43°40′33″ в. д.HGЯO Страна  Россия Субъект Федерации Волгоградская область Муниципальный район Иловлинский Сельское поселение Сиротинское История и география Перво...

 

Горностай

У этого термина существуют и другие значения, см. Горностай (значения). Горностай Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:Челюстнороты...

Michael Moran (Massachusetts politician)

American state legislator Mike MoranMajority Leader of the Massachusetts House of RepresentativesIncumbentAssumed office February 10, 2023Preceded byClaire D. CroninMember of the Massachusetts House of Representativesfrom the 18th Suffolk districtIncumbentAssumed office April 2005Preceded byBrian P. Golden Personal detailsBorn (1971-02-23) February 23, 1971 (age 53)Political partyDemocraticEducationUniversity of Massachusetts, Boston (BS) Michael J. Moran (born Februa...

 

Новотитаровское сельское поселение

Сельское поселение России (МО 2-го уровня)Новотитаровское сельское поселение Флаг[d] Герб 45°14′09″ с. ш. 38°58′16″ в. д.HGЯO Страна  Россия Субъект РФ Краснодарский край Район Динской Включает 4 населённых пункта Адм. центр Новотитаровская Глава сельского пос�...

 

Wasanbon

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (May 2011) (Learn how and when to remove this message) WasanbonTypeSugarPlace of originJapanRegion or state Tokushima Prefecture Kagawa Prefecture Shikoku Main ingredientsSugarcane plants (taketō or chikusha) Wasanbon (和三盆) is a fine-grained Japanese sugar, traditionally ...

Hate speech laws by country

Part of a series onDiscrimination Forms Institutional Structural Statistical Taste-based Attributes Age Caste Class Dialect Disability Genetic Hair texture Height Language Looks Mental disorder Race / Ethnicity Skin color Scientific racism Rank Sex Sexual orientation Species Size Viewpoint Social Arophobia Acephobia Adultism Anti-albinism Anti-autism Anti-homelessness Anti-drug addicts Anti-intellectualism Anti-intersex Anti-left handedness Anti-Masonry Antisemitism Aporophobia Audi...

 

Sterigmatocystin

Sterigmatocystin Names Preferred IUPAC name (3aR,12cS)-8-Hydroxy-6-methoxy-3a,12c-dihydro-7H-furo[3′,2′:4,5]furo[2,3-c]xanthen-7-one Other names Sterigmatocystin Identifiers CAS Number 10048-13-2 N 3D model (JSmol) Interactive image ChEBI CHEBI:18227 Y ChEMBL ChEMBL524291 Y ChemSpider 4447522 Y ECHA InfoCard 100.030.131 EC Number 233-158-6 KEGG C00961 Y PubChem CID 5280389 UNII 5F95211S5Z Y CompTox Dashboard (EPA) DTXSID2021280 InChI InChI=1S/C18H12O6/c1-21-...

 

Munisipalitas Gorje

Munisipalitas Gorje Občina GorjeMunisipalitasLokasi di SloveniaNegara SloveniaLuas • Total116 km2 (45 sq mi)Populasi (2013) • Total2.874 • Kepadatan25/km2 (64/sq mi)Kode ISO 3166-2SI-207Situs webhttp://www.gorje.si/ Munisipalitas Gorje adalah salah satu dari 212 munisipalitas di Slovenia. Kode ISO 3166-2 munisipalitas ini adalah SI-207. Menurut sensus 2013, jumlah penduduk munisipalitas yang luasnya 116 kilometer persegi ini a...

Mr. Robot

American television series (2015–2019) For other uses, see Mr. Robot (disambiguation). Mr. RobotGenre Drama Techno-thriller[1][2] Psychological thriller[3][4][5] Created bySam EsmailShowrunnerSam EsmailDirected by Sam Esmail Various (season 1) Starring Rami Malek Carly Chaikin Portia Doubleday Martin Wallström Christian Slater Michael Cristofer Stephanie Corneliussen Grace Gummer BD Wong Bobby Cannavale Elliot Villar Ashlie Atkinson ComposerMac Quayl...

 

Giovanni Keplero

Disambiguazione – Keplero rimanda qui. Se stai cercando altri significati, vedi Keplero (disambigua). Giovanni Keplero nel 1620 Giovanni Keplero, adattamento di Johannes Kepler[1][2][3][4] (Weil der Stadt, 27 dicembre 1571 – Ratisbona, 15 novembre 1630), è stato un astronomo, astrologo, matematico, cosmologo, filosofo della natura e teologo luterano tedesco, che scoprì le leggi omonime che regolano i movimenti dei pianeti. Matematico imperiale da...