Call us toll-free

Quick academic help

Don't let the stress of school get you down! Have your essay written by a professional writer before the deadline arrives.

Calculate the price

Pages:

275 Words

$19,50

Sugar interaction with cobalt-ammine cations

The IC50 for the fit was found to be 0.38 mM Cohex.



DETAILED DESCRIPTION

[0021]Hexaamminecobalt(III) (Cohex; FIG.

The hexamminecobalt (III) chloride was crystallized by cooling to 0° C.
Photo provided by Flickr

The present invention is generally directed to positively charged cobalt(III) complexes or salts thereof in octahedral ligand environments in which the ligands have strong coordinator atoms to Cobalt (i.e., CoHex complex), for example, where the ligand donor atoms are nitrogen (N)-based and/or interact either electrostatically or via hydrogen bonding, particularly ammonia, primary amines or secondary amines.

Sugar Interaction with Cobalt-Ammine Cations


Photo provided by Flickr

Andrew Knight

We have been exploring the potential of the simple Werner complex, cobalt hexammine "Cohex" for use as a broad spectrum antiviral and antibacterial therapeutic.

Upon heating, hexamminecobalt(III) begins to lose some of its ammine ligands, eventually producing a stronger oxidant.

The chlorides in [Co(NH3)6]Cl3 can be exchanged with a variety of other anions such as nitrate, bromide, and iodide to afford the corresponding [Co(NH3)6]X3 derivative.

Hexamminecobalt(III) chloride - Wikipedia


Photo provided by Flickr

Stanley : Synthesis of Hexammine Cobalt (III) Chloride















The present invention is also generally directed to a method of preparing an antiviral agent including providing a cobalt pentammine salt having a non-amine coordination site and mono-substituting the non-amine coordination site with a functional group incorporating a strong coordinator atom to cobalt to form a CoHex structure of Structure III, in which R1 incorporates the functional group having the strong coordinator atom coordinated with the cobalt atom, or a salt thereof.

Synthesis and Geometrical Isomerism of the Ethylenediamine-triacetatocobalt (III) Complexes with Ammine or Diamines
Photo provided by Flickr
Order now
  • UNMATCHED QUALITY

    As soon as we have completed your work, it will be proofread and given a thorough scan for plagiarism.

  • STRICT PRIVACY

    Our clients' personal information is kept confidential, so rest assured that no one will find out about our cooperation.

  • COMPLETE ORIGINALITY

    We write everything from scratch. You'll be sure to receive a plagiarism-free paper every time you place an order.

  • ON-TIME DELIVERY

    We will complete your paper on time, giving you total peace of mind with every assignment you entrust us with.

  • FREE CORRECTIONS

    Want something changed in your paper? Request as many revisions as you want until you're completely satisfied with the outcome.

  • 24/7 SUPPORT

    We're always here to help you solve any possible issue. Feel free to give us a call or write a message in chat.

Order now

Hexamminecobalt(III) chloride ..

One complex is a bis [ pentaamminecobalt (III)] complex, [(H3N)5Co( Im )Co(NH3)5]5+, and the other has two pentaammineimidazolatocobalt (III) units coordinated in the cis arrangement to tetraamminecobalt (III).

Cobalt(III) ammine complexes of the ..

The Co(III)-chelator complexes (e.g., cobalt cyclen complexes) have been used for mechanistic studies of phosphodiester cleavage for both its efficient hydrolysis rates and kinetic inertness, whereby the kinetic inertness of Co(III) ions results in the continued binding of the complex to the hydrolyzed phosphate.

[0022]Due to the kinetic inertness of Co(III) ions, the Cohex complex sequesters the "inner-sphere" ammonia ligands from most exchange-reactions in solution; therefore, the usual interactions with solution molecules are by "outer-sphere" coordination via water bridges to the ammonia ligands and via the high charge-density of the Co(III) ion.

Aquablue Chemistry: Hexamminecobalt(III) chloride

A case has been reported of occupational rhinoconjunctivitis and asthma due to an isolated sensitization to palladium in a worker of the electronics industry (Daenen et al., 1997, 1999). About 30 min after a brief exposure to the fumes of an electrolysis bath containing palladium, used to coat electronic parts, a previously healthy, non-smoking, non-atopic, 26-year-old male developed (transient) symptoms of conjunctivitis, rhinitis, chest tightness and dyspnoea. Pulmonary function tests (peak flow records) confirmed the existence of asthma. Usual causes of allergy were not found in this worker. He was also exposed to other metal baths (nickel, tin, lead, gold), but not to platinum, whose salts are well known to cause asthma. Skin prick tests with tetraammine palladium(II) chloride (0.001%) as well as a bronchial provocation test to aerolized tetraammine palladium(II) chloride (0.0001-0.001%, several times for 5-180 s) were positive. The latter gave an early reaction (forced expiratory volume in 1 s [FEV1] 35%) and no late change in histamine PC20 (1.2 mg/ml; provocation concentration that causes a 20% fall in FEV1). Exposure of a control asthmatic subject to tetraammine palladium(II) chloride gave no reaction. Skin prick tests carried out with solutions of sodium hexachloroplatinate(IV) (Na2PtCl6), ammonium tetrachloroplatinate(II) ((NH4)2PtCl4) and palladium(II) chloride were negative for the platinum salts (up to 1%) and possibly positive for palladium(II) chloride (0.1%). In a second series of skin prick tests (performed more than 1 year later), the positive response to tetraammine palladium(II) chloride was confirmed. Tests with other salts (nickel chloride, cobalt chloride, ammonium hexachlororhodanate ((NH4)3RhCl6), platinum salts, ammonium tetrachloropalladate(II) and ammonium hexachloropalladate(IV)) were negative, surprisingly including the two additional palladium compounds (Daenen et al., 1999).

Report on cobalt (III) ammine complexes – …

1 is an illustration of hexacoordinated Co(III), hexamminecobalt(III) (chloride counterions not shown), and magnesium(II) hexahydrate, Mg(H2O)62+, both form octahedral coordination geometry with their respective ligands.

[0012]FIG.

Order now
  • You submit your order instructions

  • We assign an appropriate expert

  • The expert takes care of your task

  • We send it to you upon completion

Order now
  • 37 684

    Delivered orders

  • 763

    Professional writers

  • 311

    Writers online

  • 4.8/5

    Average quality score

Order now
  • Kim

    "I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."

  • Paul

    "Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."

  • Ellen

    "Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."

  • Joyce

    "Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."

  • Albert

    "Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."

  • Mary

    "Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."

Ready to tackle your homework?

Place an order