answersLogoWhite

0


Best Answer

Molecular aggregates in which the individual molecules (monomers) are arranged in a regular fashion are of particular interest because of their unique electronic and spectroscopic properties, for example J-aggregates and H-aggregates. The J-aggregate is a one-dimensional molecular arrangement in which the transition moments of individual monomers are aligned parallel to the line joining their centers (end-to-end arrangement). The H-aggregate is also a one-dimensional array of molecules in which the transition moments of individual monomers are aligned parallel to each other but perpendicular to the line joining their centers (face-to-face arrangement). The most characteristic feature of J-aggregate is that they exhibit a narrow peak (J-band) red-shifted in the absorption spectrum with respect to the monomer absorption. The absorption spectrum of the H-aggregate consists of a blue-shifted band (generally is not as narrow as the J-band) with respect to the monomer absorption. The energy shift of the absorption bands of the aggregates has been explained by exciton theory.

User Avatar

Wiki User

16y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What's H aggregate
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Whats Triple H's MySpace URL?

He does not have myspace


Whats a good name for a crew?

The H-D crew


Whats Triple H's theme song?

The Game by Motorhead


Whats the tpo speed on raptor 700 2009?

263.56 Km/h


Can you guess whats my name it begins with a H?

erm... is ur name haziirah


Whats the capital of Friuli Venezia Giulia?

Trieste. Paul H Barnsley


Whats the engine code for a 1985 Chevy 305?

VIN code "H"


Whats Triple H real name?

Triple H's real name is Hunter Hearst Helmsley and that is why his WWE name is Triple H


Whats Jake t austins aim?

i know it but i ant give it out h has 2


Hemmeriods whats the cure?

Medicines like Preparation H will help get rid of hemorrhoids.


What has the author H M Bernstein written?

H. M. Bernstein has written: 'Projections of energy availability, cost, and aggregate demand for 1975, 1980, 1985 and 1990' -- subject(s): Power resources


A plus A plus H equals HA whats the the two digit number HA?

A=9 h=1 9+9+1=19