Help!!!!!

[kelly]

Whether peptides made with 3,3,3 TFAlanine will fold / conform to the same molecular shape as the same peptide made with natural amino acids ? Thank you!

[chempass]

Whether peptides made with 3,3,3 TFAlanine will fold / conform to the same molecular shape as the same peptide made with natural amino acids ? Thank you!

I do not know the answer, but I would search for something like that:
fluorine+amino+acid+folding
If you will find out please let me know the answer, it's quite an interesting topic.

[kelly]

They dont have the same shape.

Due to its small steric size, fluorine has been used as a replacement for hydrogen in many biologically active molecules,including amino acids. Once introduced, the strong carbon-fluorine bond is particularly resistant to metabolic transformations, and the electronegativity of fluorine can have a significant effect on the basicity or acidity of neighbouring groups and on the electron distribution, and can change the overall reactivity and stability of a molecule.

[vhpk]

Show the methods how to know: Ni₂+, Au₃+, Pb₂+, Al₃+, Au₃+, Sb₄+

[vhpk]

Can anyone help me with these reactions, I only need to know the products and the reacted subtance, thanks a lot
Na₂S₂O₇ -->
HSO₃Cl +..... --> H₂SO₅ +...
Na₂S₂ +..... --> Na₂S₂O₃
..... + N₂H₄ --> HN₃ + H₂O
Ca₃(PO₄)₂ +.... +..... --> CaSiO₃ + CO +...
CS₂ + Cl₂ --> CCl₄ +.....
NaIO₃ + NaOH + Cl₂ --->.... +....

[peter]

Can anyone help me with these reactions, I only need to know the products and the reacted subtance, thanks a lot
Na₂S₂O₇ -->
HSO₃Cl +..... --> H₂SO₅ +...
Na₂S₂ +..... --> Na₂S₂O₃
..... + N₂H₄ --> HN₃ + H₂O
Ca₃(PO₄)₂ +.... +..... --> CaSiO₃ + CO +...
CS₂ + Cl₂ --> CCl₄ +.....
NaIO₃ + NaOH + Cl₂ --->.... +....

Na₂S₂O₇ --> Na₂SO₄ + SO₃
HSO₃Cl + H₂O₂ --> H₂SO₅ + HCl
Na₂S₂ + O₂ -> Na₂S₂O₃
HNO₃ + N₂H₄ --> HN₃ + 2H₂O
Ca₃(PO₄)₂ + SiO₂ + C --> CaSiO₃ + CO + P
CS₂ + Cl₂ --> CCl₄ + SCl₂
NaIO₃ + NaOH + Cl₂ = NaH₂IO₅ + NaCl
If you need balance it here: http://www.webqc.org/balance.php

[vhpk]

Oh, the reactions are too many, plz help me:
.... + H₂O +HgO -->..... + HClO
ClO₂ +... +... --> KClO₂ +...+ O₂
KClO +... --> KClO₃ +....
Br₂ + HgO -->... +...
I₂ + H₂O + HgO -->... . .... +.....
Si₂Cl₆ +..... --> Si₂H₂ + Li... + Al...

[Sam]

Where are you getting all this reactions from?
They look really strange.

[vhpk]

Where are you getting all this reactions from?
They look really strange

My friends gave me as a quiz

[vhpk]

Plz help me, thanks a lot

[peter]

Oh, the reactions are too many, plz help me:
.... + H₂O +HgO -->..... + HClO
ClO₂ +... +... --> KClO₂ +...+ O₂
KClO +... --> KClO₃ +....
Br₂ + HgO --> ... +...
I₂ + H₂O + HgO -->... . .... +.....
Si₂Cl₆ +..... --> Si₂H₂ + Li... + Al...

Cl₂ + H₂O + HgO ---> HgCl₂ + HClO
ClO₂ + KOH + H₂O₂ ---> KClO₂ + H₂O + O₂
KClO + O₃ --> KClO₃ + O₂ (not sure about this one)
Br₂ + HgO ---> Br₂O + HgBr₂
I₂ + H₂O + HgO ---> HgI₂ +HIO
Si₂Cl₆ + LiAlH₄ --> Si₂H₆ + LiCl + AlCl₃ (I suppose you have meant Si₂H₆)

P.S. It's a good idea to start a new post for each new question.

[vhpk]

Thanks a lot Peter, can you share me your experience to find the reactants and the products of redox reactions