The phrase "a unique effort to" is correct and usable in written English.
You can use it when describing a specific and distinctive attempt or initiative aimed at achieving a particular goal or outcome.
Example: "The organization launched a unique effort to promote environmental sustainability in urban areas."
Alternatives: "an exceptional attempt to" or "a distinctive initiative to".
The designers said they were aware that theirs is not a unique effort to find simple ways to share online content.
As film historian Patricia White puts it, Salome stands today as a unique effort to produce a "female movie modernism" (White 2002, 61).
Buildings constantly disappeared from the Kremlin, as Merridale shows, and some of the most impressive structures, such as Tsar Boris Godunov's enormous cathedral, a unique effort to house Moscow townspeople in this reserve of elites, never got built at all.
The 'Town + Gown' program of the New York City Department of Design and Construction is a unique effort to systematize the involvement of universities and non-academic practitioners in research into 'built environment' issues.
A unique effort to study the structure and evolution of the North American continent, EarthScope consists of observatories and networked instruments, including seismic arrays that produce three-dimensional images of the continental crust and the underlying mantle.
A unique effort to improve Russian science has won a ringing endorsement: Two heavyweight U.S. foundations are plowing $12.5 million into an effort to create scientific oases in Russia's desertified university system.
Creating the coaching intervention based on social science theories that explain differential acceptance and success within a professional discipline is a truly unique effort to translate theories into practice.
The military operation provided support for a unique effort at peacemaking by the United Nations.
Today I want to talk about the Rhino Rescue Project RRPP), which is spear-heading a new and unique effort to prevent poaching in reserves around Kruger National Park in South Africa.
This was a unique effort that attempts to deliver the right learning resource for the right sailor at the right time, based on the sailor's prior performance history.
The Rushdie Born-Digital archives Working Group, a multidisciplinary team of software engineers, librarians, and archivists at Emory University engaged in a unique effort in digital archiving to build an "emulator" to allow MARBL visitors to see what was on Rushdie's desktop on the last day that he typed at the machine.
